SohCahToa Review

Front

What is the ratio of the opposite leg to the hypotenuse in a right triangle?

Back

Sine (sin) is the ratio of the length of the opposite side to the length of the hypotenuse.

Front

What is the cosine of angle C if the adjacent side is 16 and the hypotenuse is 34?

Back

cosC = 16/34

Front

What can you find using trigonometric ratios (sin, cos, tan)?

Back

You can find missing sides, missing angles, and the area of a triangle.

Front

Which trigonometric function would you use to find the adjacent side in a right triangle?

Back

Cosine (cos) is used to find the adjacent side.

Front

What is the sine of angle A if the opposite side is 32 and the hypotenuse is 40?

Back

sinA = 32/40

Front

Define tangent in the context of a right triangle.

Back

Tangent (tan) is the ratio of the opposite side to the adjacent side.

Front

If the hypotenuse is 50 and the opposite side is 30, what is sinA?

Back

sinA = 30/50

Front

What is the relationship between sine and cosine in a right triangle?

Back

sin(θ) = cos(90° - θ) for any angle θ.

Front

How do you calculate the length of the opposite side using sine?

Back

Opposite side = hypotenuse × sin(θ).

Front

What is the formula for finding the hypotenuse using cosine?

Back

Hypotenuse = adjacent side / cos(θ).