## What is a ratio in trigonometry?

Trigonometric ratios are the ratios of the length of sides of a triangle. These ratios in trigonometry relate the ratio of sides of a right triangle to the respective angle. The basic trigonometric ratios are sin, cos, and tan, namely sine, cosine, and tangent ratios.

**Why do we use trigonometric ratios?**

The trig ratios can be used to find lots of information, and one of their main purposes is to help solve triangles. To solve a triangle means to find the length of all the sides and the measure of all the angles. This lesson will cover how to use trig ratios to find the side lengths of a triangle.

**What is the use of the six trig functions?**

Lesson Summary. The six main trigonometric functions are sine, cosine, tangent, secant, cosecant, and cotangent. They are useful for finding heights and distances, and have practical applications in many fields including architecture, surveying, and engineering.

### What is the difference between trigonometric ratios and trigonometric functions?

While trigonometric ratios deal only with values of angle and the sides of the triangle, at the same time trigonometric functions deal with much larger components, like vectors, equations and many more. You can say that ratios are the subset of the functions, while function having the upper hand.

**Why is it important to know the six trigonometric ratios?**

The importance of trigonometric ratios is that it is used in various places or in various subjects like civil engineering, architecture, mechanical engineering, medical imaging, electronics, electrical engineering, astronomy, chemistry, geography, developing computer music, oceanography, seismology, phonetics, image …

**Which one is the easy way to remember trigonometric ratios?**

SOH-CAH-TOA: an easy way to remember trig ratios.