Question

Are Trigonometric functions only for right triangles?

Answer 1

Yes it is but for other triangles you can create right triangles to use them.

Explanation:

For Trigonometric functions to work you need a hypotenuse, which you can only get in right triangles.

When you are dealing with triangles other than right triangles, the solution is to draw a perpendicular line to create right triangles. For more information just visit the source below.

Source: Math-Prof

Answer 2

Not only. see explanation.

Explanation:

Although most often trigonometric functions are used with right triangles there are some situations when they can be used for any type of triangle.

Examples:

• If you have two sides given and an angle between them you can use the trigonometric functions the Law of Cosines to calculate the third side.

• You can calculate the triangle's area using `A=1/2xxaxxbxxsin alpha`. You do not need to calculate the height, only two sides and the angle between them.