Ch 5.2 Review Flashcard (AL)

Front

What is the sine function in a right triangle?

Back

The sine function is the ratio of the length of the opposite side to the length of the hypotenuse.

Front

What is the cosine function in a right triangle?

Back

The cosine function is the ratio of the length of the adjacent side to the length of the hypotenuse.

Front

What is the tangent function in a right triangle?

Back

The tangent function is the ratio of the length of the opposite side to the length of the adjacent side.

Front

If you know the opposite side and hypotenuse, which trig function do you use?

Back

Sine.

Front

If you know the hypotenuse and adjacent side, which trig function do you use?

Back

Cosine.

Front

What is the ratio for sine?

Back

Opposite Leg / Hypotenuse.

Front

What is the ratio for cosine?

Back

Adjacent Leg / Hypotenuse.

Front

What is the ratio for tangent?

Back

Opposite Leg / Adjacent Leg.

Front

If sin(33) = x/14, what is x?

Back

x = 14 * sin(33).

Front

If cos(33) = 14/x, what is x?

Back

x = 14 / cos(33).