Question

For a right triangle ABC, how do you find the sine, cosine and tangent of angle A?

Answer 1

As below.

Explanation:

`sin A = "oppo. side " / "hypotenuse" = a / h`

`cos A = "adj. side " / "hypotenuse" = b / h`

`tan A = "oppo. side " / "adj. side" = a / b`