trigonometric
C2Pronunciation
UK
- /trˌɪɡənəʊmˈɛtrɪk/
US
- /ˌtrɪɡənəˈmɛtrɪk/Canadanot-comparableadjective
Description
- relating to triangles and angles
- based on sine, cosine, and tangent
- used for angle and side calculations
"Trigonometric" may sound hard, but at its heart, it is about the relationship between the sides and angles in triangles, especially right triangles. Think of building a ramp: you need to know the angle and the length to make it work well. That is where functions like sine, cosine, and tangent come in. They help us find missing lengths and angles. You will see "trigonometric" most often in math, physics, engineering, and navigation, anywhere careful measurements with angles are needed. It is also used to describe waves, slopes, and other repeating patterns.
The word "trigonometric" comes from Greek roots meaning "triangle measurement." It refers to everything related to the mathematical study of triangles, particularly right-angled triangles, and the relationships between their sides and angles. While it sounds intimidating, trigonometry is a foundational tool in many fields.
At its core, trigonometry revolves around six key functions: sine (sin), cosine (cos), tangent (tan), cotangent (cot), secant (sec), and cosecant (csc). These are not just abstract formulas; they represent ratios of sides within a right triangle for a given angle. Knowing one side and an angle allows you to calculate the others.
You'll encounter "trigonometric" in contexts like:
Mathematics:* Solving equations, graphing periodic functions (like waves), proving geometric theorems. Physics:* Analyzing projectile motion, understanding wave behavior, calculating forces. Engineering:* Designing structures, surveying land, creating maps. Navigation:* Determining positions and distances using angles. Computer Graphics:* Creating realistic 3D models and animations.
For example, a surveyor might use trigonometric principles to calculate the height of a building without climbing it. An architect uses trigonometry to help design a stable roof. A musician might analyze sound waves using trigonometric functions. Even the GPS in your phone relies on trigonometric calculations.
So, while "trigonometric" may seem like an abstract mathematical term, it is actually a powerful and practical tool that supports many parts of our world, helping us understand and measure everything from small waves to tall mountains.
Examples
- 1
Math exam
The exam includes a few trigonometric problems, so bring your calculator.
- 2
Wave modeling
She used trigonometric functions to model the motion of the wave.
- 3
Advanced math
In advanced math, students learn to simplify expressions with trigonometric identities.
Meaning
trigonometric identities
equations with sine, cosine, and similar functions that are always true
Forms and spellings
1 form open this card.
Main spelling
- trigonometricadjective