Finding the side lengths of a triangle using Trig Ratios

Front

What is the ratio for sine?

Back

O/H (Opposite over Hypotenuse)

Front

Which Trig function do you use to find the opposite side?

Back

Sine

Front

What is the acronym to help you remember the ratios to use in trigonometry?

Back

SOHCAHTOA

Front

What side is considered the hypotenuse in a right triangle?

Back

The side opposite the right angle.

Front

What is the ratio for cosine?

Back

A/H (Adjacent over Hypotenuse)

Front

What is the ratio for tangent?

Back

O/A (Opposite over Adjacent)

Front

If angle A is 30 degrees, what is sin A?

Back

1/2

Front

If angle A is 45 degrees, what is cos A?

Back

√2/2

Front

In a right triangle, if the opposite side is 3 and the hypotenuse is 5, what is sin A?

Back

3/5

Front

In a right triangle, if the adjacent side is 4 and the hypotenuse is 5, what is cos A?

Back

4/5