Automatically translated.View original post

Trigonometric ratio

5/16 Edited to

... Read moreจากประสบการณ์ส่วนตัวในการเรียนและทำความเข้าใจอัตราส่วนตรีโกณมิติ ผมพบว่าการเข้าใจพื้นฐานของมุม 30°, 45°, และ 60° รวมถึงค่า sin, cos, และ tan ที่สัมพันธ์กับมุมเหล่านี้ ช่วยให้การแก้โจทย์ปัญหาในชีวิตประจำวันง่ายขึ้นมาก ตัวอย่างเช่น ช่างไฟฟ้าที่ต้องการหาความสูงของเสาไฟฟ้า ด้วยการยืนห่างจากฐานเสาไฟฟ้า 12 เมตรและวัดมุมเงย 30 องศา ทำให้คำนวณความสูงได้อย่างแม่นยำโดยใช้สูตร tan 30° = ความสูง / 12 นอกจากนี้ การประยุกต์ใช้อัตราส่วนตรีโกณมิติเพื่อหาความยาวบันไดที่ต้องวางทำมุม 60 องศากับพื้นดิน หรือการวัดระยะห่างของรถจากตึกโดยใช้มุมก้ม 45 องศา ก็ถือเป็นตัวอย่างที่พบได้จริงในสายงานช่างและวิศวกร การเข้าใจคณิตศาสตร์ในลักษณะนี้ ไม่เพียงแต่ช่วยในการแก้ปัญหาเท่านั้น แต่ยังพัฒนาทักษะการคิดวิเคราะห์และความสามารถในการประยุกต์ใช้องค์ความรู้ในสถานการณ์จริง สิ่งที่อยากแนะนำเพิ่มเติมคือ การฝึกวาดสามเหลี่ยมมุมฉากและระบุมุมต่างๆ รวมถึงการใช้เครื่องคิดเลขอย่างถูกวิธี จะช่วยให้การคำนวณอัตราส่วนตรีโกณมิติง่ายและถูกต้องมากขึ้น อีกทั้งยังสามารถนำไปใช้ในวิชาอื่น ๆ เช่น ฟิสิกส์ และการออกแบบต่าง ๆ ได้อย่างมีประสิทธิภาพ

Related posts

Trigonometric ratios in the regular heptagon
#math #maths #mathematics #trig #trigonometry
cubicequation

cubicequation

8 likes

A split image showing raw pork belly and ingredients on a cutting board on top, and finished glossy braised pork belly in a pan below.
Raw pork belly strips, sliced ginger, green onions, and spices on a cutting board, with soy sauces and rock sugar in bowls, ready for braising.
Raw pork belly strips are submerged in water in a black wok on a stove, preparing for blanching.
Golden Ratio Braised Pork Belly So Simple So Good
Braised Pork Belly (Hong Shao Rou)🐖 500g pork belly, 20g light soy sauce, 25g dark soy sauce, 30g rock sugar, 40g cooking wine, 2–3 slices of ginger. Stick to this golden ratio and it turns out delicious every time—rich, glossy, and melt-in-your-mouth tender. The spices in the photo—star anise, b
Wok Street China

Wok Street China

117 likes

beginner baker friendly buttercream recipe 🧈🩷 i do a 1:1 ratio of butter to sugar so in this video i am doing 3 sticks butter (339 g) to 339 g of powdered sugar, i have found that is the best ratio for a buttercream that is not overly sweet 🥰 lmk if you try it!!! #baker #bakery #butterc
SweetJaneBakery

SweetJaneBakery

205 likes

A hand-drawn diagram of an oblique triangle with an inscribed circle and excenters, accompanied by mathematical formulas for triangle area and derivations for half-angle sine and exradii IB and IC, written on lined notebook paper.
Mathematical formulas on lined paper showing the half-angle trigonometric ratios for angle B, including sin(B/2), cos(B/2), tan(B/2), csc(B/2), sec(B/2), and cot(B/2) in terms of the triangle's sides.
Mathematical formulas on lined paper showing the half-angle trigonometric ratios for angle C, including sin(C/2), cos(C/2), tan(C/2), csc(C/2), sec(C/2), and cot(C/2) in terms of the triangle's sides.
Half-angle trig ratios for the other angles
In an oblique triangle, the six trigonometric ratios can be found in terms of the sides. These are for the angles labeled B and C. #math #maths #mathematics #geometry #trigonometry
cubicequation

cubicequation

34 likes

#studywithme #studytips #studytok #viralvideo #academic
Study Tips 📚✏️

Study Tips 📚✏️

375 likes

Mexican “red” rice 🍚 To your blender add: - 3 Roma tomatoes - 1/2 onion - 5 garlic cloves - salt to taste - HALF of your liquid Enjoy fam!
Ana Nelson

Ana Nelson

1606 likes

Zongzi / Joong ~ Chinese Sticky Rice Dumplings!
It’s that time of year again ^.^ Dragon Boat Festival is one☝️month away!! 🐲🚣 Let the Zongzi 粽子 / Joong 粽 (Chinese sticky rice dumpling) wrapping begin! Dragon Boat Festival (端午节) is a traditional Chinese holiday celebrated by racing dragon boats and eating glutinous rice dumplings wrapped in ba
Sikfan Kitchen

Sikfan Kitchen

5 likes

A bowl of protein cheesecake dip topped with sliced green apples, with text overlays indicating "PROTEIN CHEESECAKE DIP," "150 CALS," and "17G PROTEIN."
Protein Cheesecake Dip 🍰
YUM!!! INGREDIENTS: -fage 2% plain green yogurt -fairlife 2% milk -zero sugar cheesecake pudding mix -vanilla extract -cinnamon -Granny Smith apple STEPS: 1. Mix 142g of yogurt w/ 6g of pudding mix. 2. Add 45mL milk + 1-1.5tsp vanilla extract and mix. 3. Add cinnamon + mi
Taylor 🌼

Taylor 🌼

421 likes

A table illustrates the conversion of the ratio 3:5 to its equivalent fraction (3/5), percentage (60%), and decimal (0.6). Below, a 10x10 grid visually represents 60% with 60 magenta squares shaded. The image is titled "Ratio and Percentages".
Ratio and Percentages
Ratios and percents are related because both are ways to express the relative sizes or proportions of quantities. They both describe how much of one thing there is compared to another, but they do so in slightly different formats. Here's how they are connected: 1. **Ratios**: A ratio is a wa
HeyMrWilson!

HeyMrWilson!

6 likes

Proving basic trigonometric relationships
In this post, the main six trigonometric ratios are shown why they interact as they do. The top half shows the traditional way. The bottom half shows how with similar triangles. #math #maths #mathematics #geometry #trigonometry
cubicequation

cubicequation

5 likes

A math cheat sheet titled 'PROPERTIES OF INTEGERS' detailing Closure, Commutative, Associative, Distributive, Identity, and Inverse properties with definitions, formulas, and examples for addition, subtraction, and multiplication.
A math cheat sheet titled 'LINEAR EQUATIONS KEY FORMULAS' presenting Slope-Intercept, Point-Slope, Standard, Two-Point, Slope, and General Linear Equation forms, each with formulas, descriptions, and examples.
A math cheat sheet summarizing key concepts for Real Numbers, Polynomials, Pair of Linear Equations, Quadratic Equations, Arithmetic Progression, and Triangles, including formulas and theorems.
math cheat sheets1
#mathtips #math #maths #mathideas
andrea35reiss

andrea35reiss

27 likes

Ratio high protein low sugar n carb vanilla yogurt
SouthernBlonde

SouthernBlonde

21 likes

Garlic Cream Cheese Chip Dip✨
This is my favorite chip dip. I don't know where the recipe came from, but my grandma and her side have been making it for a hot minute. It was my FAVORITE snack as a kid, but I could only have it during the summer for whatever reason 😂. I have seen my cousins use whipped cream cheese or chiv
Amber✨

Amber✨

33 likes

Calculate Your Debt-To-Income Ratio
@Welcome Baddies 1. Calculate Your Monthly Debt Payments - Add up minimum monthly payments for all debts (credit cards, loans, etc.) - Do not include rent/mortgage, utilities, or other non-debt expenses 2. Divide by Your Gross Monthly Income - Debt Payments / Gross Income = Debt-to-In
Welcome Baddies

Welcome Baddies

161 likes

The Ultimate Homemade Cheesy Beef Egg Rolls 🧀🥩✨
If there is one thing that belongs on every snack plate, it is these Homemade Cheesy Beef Egg Rolls! Forget the takeout versions! making these at home is a total game changer because you can control the cheese-to-meat ratio. 😭🙌🏾 Here is what you’ll need: • 1 lb Ground Beef (lean works best!) • 1
Brown Sugar 🧸

Brown Sugar 🧸

6 likes

Strawberry Summer Solstice Tea 🍓🫖
Captured the potency of the Summer Solstice through steeping my Women’s Balancing Tea from Mountain Rose Herbs. Tea Blend 🫖 peppermint leaf, raspberry leaf, nettle leaf, ginger root, dandelion leaf, oatstraw, horsetail, chamomile flowers, and rose petals. Strawberry Sun Tea 🌞🍓 • Ratio herb
Pearl

Pearl

9 likes

Feeding my sourdough starter
Caring for my sourdough starter — Day 4 🤍 The consistency was too thin, so I increased the feed. 1 part starter, 2 parts flour, 2 parts water. Mixed until soft and pancake-like texture. Leaving it on the counter overnight. Back tomorrow for Day 5 🤍 #sourdough #lemon8challenge #sourd
Chantel Graham

Chantel Graham

24 likes

This image illustrates that combining omega supplements with healthy fats like cashews and almonds, and splitting doses between morning and evening, leads to full omega absorption for better hair, skin, and nail health.
This image explains why omegas are delicate and lists various nuts like almonds, cashews, and walnuts, detailing how their nutrients (e.g., vitamin E, copper, polyphenols) boost omega absorption and provide benefits for skin, hair, and nails.
This image highlights seeds (sunflower, sesame, pumpkin, flax & chia) and whole-food fats (avocado, olive oil, coconut, dark chocolate) that protect omegas and enhance their absorption, contributing to skin health and overall glow.
What You’re Missing for Max Omega Absorption ✨
Most people take omegas every day but still don’t absorb them fully. The secret isn’t more capsules, it’s activation. Here’s what no one tells you about making them actually work 👇🏼 🧬 1. Absorption is only step one Once omegas enter your bloodstream, they still have to be incorporated into y
andrea.m | Nails•Nourish•Glow

andrea.m | Nails•Nourish•Glow

1242 likes

RECIPE 👇🏻 CHEESY KIELBASA ORZO SKILLET 🔥 (Save this!) WHAT YOU NEED: 🥖 2 packs kielbasa (sliced) 🧅 1 diced onion 🥫 1–2 tbsp tomato paste 🍝 2 cups orzo 💧 4 cups water 🧈 2–3 tbsp butter 🧀 ½ block cheddar cheese (shredded) 🥛 A splash of heavy cream 🌽 12 oz frozen corn (added at the end)
Kelly Tracey

Kelly Tracey

5 likes

A handwritten page details trigonometric relations for a regular pentagon, using side 'a', diagonal 'b', and circumradius 'R'. It presents derivations and results for various sums and products of trigonometric functions (tan, sec, csc, cot) involving angles π/5 and 2π/5, such as 10 = tan²(π/5) + tan²(2π/5).
Trigonometric relations in the regular pentagon
In the regular pentagon, a = side length, b = length of the diagonal & R = length of the circumradius. #math #maths #mathematics #geometry #trigonometry
cubicequation

cubicequation

48 likes

An anime-style illustration of a muscular male figure from the back, with broad lats and arms spread wide, against a dramatic city background. The text reads "Average back day enjoyer:".
The lat to waist ratio lowk going crazy
Jameson 𒉭

Jameson 𒉭

3 likes

Rosca De Reyes
Homemade Rosca de Reyes | Rosca de Reyes Casera There’s nothing like the smell of fresh Rosca de Reyes filling your kitchen. This traditional sweet bread is soft, citrusy, and perfect for sharing with family and friends. 🥖 Ingredients 4 cups all-purpose flour ¾ cup sugar 1 tablespoon yeast
Camara!!

Camara!!

10 likes

3 ingredient pasta pumpkins… made of pumpkin pasta! Ratio: 1 part pumpkin to 2 parts flour (by volume) and some salt for flavor and structure! You deserve to eat. And also? I love you. #creatorsearchinsights #pasta #cheap #budget #fyp
Kiki Rough

Kiki Rough

256 likes

New Bible Setup | Aesthetic Bible Study Inspiratio
Starting fresh with my new Bible setup. Tabs, notes, and highlights to make my quiet time feel more personal and inviting. Every page is a chance to go deeper into God’s Word. #decoratemybible #faithjourney #bibleready #creativebible #biblestyle
Sasha

Sasha

439 likes

A black and white image featuring a binder and book spines in the background. Two white text boxes are overlaid; the top one reads "Fixed Ratio" in purple, and the bottom defines "FR is a reinforcement schedule where you reinforce after a set number of responses."
Fixed Ratio
Studying for a ABA exam? #fixedratio #aba #rbtflashcards #rbt #reinforcement
Emma

Emma

4 likes

The ratio I feed my sourdough starter
Feeding your sourdough starter 🥖 For an established starter (at least 1 month old), a great feeding ratio is 1:3:2 — 1 part starter, 3 parts flour, 2 parts water. Aim for a very thick pancake batter consistency (easy on the water!). ✨ This ratio can scale up or down depending on how much starte
Little Ranch Family🏠🪴🍞

Little Ranch Family🏠🪴🍞

37 likes

A handwritten mathematical derivation of the trigonometric identity cos(A+B) = cos A cos B - sin A sin B. The derivation uses a triangle diagram, area formulas, and various trigonometric substitutions, progressing step-by-step to the final identity.
cosA × cos B - sin A × sin B = cos(A+B)
This is an obscure derivation of a well-known trigonometric identity. #math #maths #mathematics #geometry #trigonometry
cubicequation

cubicequation

5 likes

Replying to @Louisa Mahurien article links attached at the end. #nurse #healthcare #nurselife #patientcare
Stella Rosa 💙

Stella Rosa 💙

38 likes

A hand-drawn diagram on lined paper illustrates the proof of tan⁻¹(1) + tan⁻¹(2) + tan⁻¹(3) = π. It uses a 3-4-5 right triangle with an inscribed circle and angles α, β, γ. Equations show how these angles relate to the inverse tangents, summing to π.
tan^-1(1) + tan^-1(2) + tan^-1(3) = π
The famed 3-4-5 right triangle is used to prove the following trigonometric identity true. #math #maths #mathematics #geometry #trigonometry
cubicequation

cubicequation

0 likes

The ratio 🥗
Could not suggest snack plates MORE! • • • #foodideas #healthyrecipes #snackplate #snackingishealthy #snacksforweightloss
jrmounkes

jrmounkes

90 likes

A person takes a mirror selfie, asking "What's you guys follower to like ratio I feel like mine is pretty extreme." The image also displays "Lemon8 @queenofthedead111" at the bottom.
Follower to like ratio!!!
I am grateful for all of the support that I’ve gotten on every platform, I just think it’s crazy how drastically different the ratios can be!!! For anyone who doesn’t know I post on YouTube, tiktok, and lemons 8!!! Everything is available in my bio!!! #interactwiththis #socialmediatipsandtricks
queenofthedead111

queenofthedead111

4 likes

Meme moment with Ratio and Aventurine
A small recreation of a heavily meme’d scene from Honkai:Star Rail. And yes, we were aware of the joke when we made this video. 💎: @@Storming cosplays #HonkaiStarRail #cosplayer #drratiohonkaistarrail #aventurinehonkaistarrail #ichibancon2025
DJ

DJ

0 likes

@AliciaXL Weight Loss Full Day of Eating
gymnutritionfitness

gymnutritionfitness

56 likes

10:1 Protein Ratio Jalapeño Meatballs
These are absolutely delicious! I swear. And SO easy and versatile. We ate them plain but in the future I see orange sauce, teriyaki, spaghetti, soy sauce, and more! Just soak the bread without crust, squeeze out excess milk, and combine all ingredients. Each meatball should weigh ab
Dr. Katie

Dr. Katie

6 likes

Failing forward is good 🤣
I am constantly trying to find new foods that are in conjunction with my health goals. These little hemp seed protein cupcakes or muffins if you prefer to call them that, are amazing. The original idea was to top the hempcakes with a ginger hibiscus syrup ( boiled hibiscus flower and agave) … i
Liyahhhslife

Liyahhhslife

2 likes

The PERFECT latte ratio!!
Follow this ratio and you will never have a bad latte!! 🌟 I start off with pouring and weighing out one fluid ounce of whatever sweetener/creamer. I’m going to use. The Chobani ones are really good, but my favorite is this one! 🌟 then I’ll pour my shot over the creamer in my cup or sometimes I’
Tanya Iris

Tanya Iris

47 likes

Did you know about this??? - If so, just know that “life is about balance.” - Which foods shocked you the most? - #nutrition #healthy #snacks
Gabbi Tuft

Gabbi Tuft

217 likes

#hiptowaistratio 💪 #over50
drivingwithmelissa

drivingwithmelissa

142 likes

A flat lay of various pink and white stationery items, including notebooks, pens, a pencil case, a ruler, and a pink camera, with the overlaid text "Shein Stationary Finds! Pt 1."
A close-up of a pink and light pink checkered knitted pencil case with a zipper, resting on a textured surface next to green decorative elements.
A hand holding a set of four pastel-colored pencil sets in clear plastic packaging, each containing a mechanical pencil, lead refills, and an eraser.
Shein Stationary Finds Pt 1.✨🎀
Just some cute stationary I plan on buying for school after the summer <3 Its best to post it on here so I don’t forget.💗✨ #stationery #lemon8challenge #stationary supplies #sheinproducts #school #aesthetic #SHEIN #stationaryfinds #girlygirl
𝗔𝗿𝗶𝘆𝗮𝗻𝗻𝗮 🩷

𝗔𝗿𝗶𝘆𝗮𝗻𝗻𝗮 🩷

43 likes

The 2025/26 La Liga season has begun! Live broadcast is now underway on TVWAN Sports 403.22&4 #kickoff #laliga #Footballls Back #NewSeason
x28083nmi

x28083nmi

18 likes

A game scoreboard displays 'holy ratio 💔💔' with player FOOTZ84 having 205 eliminations and KAR_AM-_-Gg having 37. The image highlights a significant score difference, also known as a 'ratio of doom'.
ratio of doom💔💔
#ratio
Clover! Ⴕ 🤺 🇲🇽 ★★ (JC)

Clover! Ⴕ 🤺 🇲🇽 ★★ (JC)

2 likes

Dr. Ratio quotes
Dr. Ratio has the sassiest aura. And I am all for it!! #HonkaiStarRail #cosplayer #cosplay #drratiohonkaistarrail
DJ

DJ

2 likes

Imma need 14 more of these elf bottles to make more lipglosses🤷🏻‍♀️🤔🥴🤝🏼🙄 #makeupchallenge
Demi

Demi

1455 likes

Flirt To Roast Ratio❤️🔥
Date night but make it competitive 😏🃏 Flirt To Roast Ratio by Thrilly Games is the card game where sweet compliments meet ruthless comebacks. The goal? Pair a Flirt Card with the perfect Roast Card and land as close to 100 as possible — without going over (and you have to beat 65 to even qualify
Sarah - True•joy•board•gaming

Sarah - True•joy•board•gaming

36 likes

Don’t Use ChatGPT To Cheat! Do This Instead!
Let’s clear this up: ChatGPT isn’t just for cheating. If you use it right, it can actually help you learn better. I’ve been using it to summarize complex topics, turn lecture notes into practice questions, and get extra examples when I’m too embarrassed to ask in class 😅 It’s like having a tutor on
CompSkyy

CompSkyy

144 likes

x28083nmi

x28083nmi

803 likes

golden ratio for matcha lattes
here’s my current golden ratio for my matcha lattes! perfect amount of matcha and not too milky or watery #matcha #matchalatte #matchagirl #matchatips #matcharatios
emily

emily

24 likes

A glass jar filled with a light green, frothy Matcha Moringa Latte, placed on a wooden surface with a blurred outdoor background.
Ingredients for the latte, including a can of coconut milk, bags of moringa and matcha powder, and a blender cup with ice cubes, arranged on a wooden table.
A blender cup containing coconut milk and distinct layers of green moringa and matcha powder before blending.
Matcha Moringa Latte
I still have some powdered moringa that I bought for adding to juice and forgotten about. Since it doesn’t expire for another few months I want to make the most of its superfood benefits! Instead of adding it to juice I made this iced matcha latte. 🍵 The ratio for 2 drinks is 1 tsp of powdered
Melissa Athena

Melissa Athena

8 likes

A tablet screen displays the title 'How I Use ChatGPT to Study (Not Cheat)' over a vibrant orange background, showing two ChatGPT interface options for messaging and media input.
A tablet screen shows a ChatGPT conversation where the AI explains 'reverse osmosis' in simple terms, demonstrating its use for clarifying complex topics.
A tablet screen displays a ChatGPT conversation generating five quiz questions about the American Revolution, illustrating its utility for creating study quizzes.
Don’t Use ChatGPT To Cheat! Do This Instead!
Let’s clear this up: ChatGPT isn’t just for cheating. If you use it right, it can actually help you learn better. I’ve been using it to summarize complex topics, turn lecture notes into practice questions, and get extra examples when I’m too embarrassed to ask in class 😅 It’s like having a tutor o
CompSkyy

CompSkyy

392 likes

I will post any edits EnhypenStray kidsATEEZAnything forThe 20k likes celebratio
⋆౨ৎm1nnie.v3rse౨ৎ⋆

⋆౨ৎm1nnie.v3rse౨ৎ⋆

20 likes

Right Maggie? #fakefriend #editinlemon8
Emelyn

Emelyn

1 like

See more