4/22 FLASHCARD 9.4-.9.5 Sine, Cosine, tangent

Front

What is the sine function used for in trigonometry?

Back

The sine function is used to relate the opposite side of a right triangle to the hypotenuse.

Front

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

Back

You use the sine function.

Front

What is the formula for sine in terms of a right triangle?

Back

sin(θ) = Opposite / Hypotenuse.

Front

What is the cosine function used for in trigonometry?

Back

The cosine function relates the adjacent side of a right triangle to the hypotenuse.

Front

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

Back

You use the cosine function.

Front

What is the formula for cosine in terms of a right triangle?

Back

cos(θ) = Adjacent / Hypotenuse.

Front

What is the tangent function used for in trigonometry?

Back

The tangent function relates the opposite side to the adjacent side of a right triangle.

Front

If you know the opposite side and adjacent side, which trigonometric function do you use?

Back

You use the tangent function.

Front

What is the formula for tangent in terms of a right triangle?

Back

tan(θ) = Opposite / Adjacent.

Front

What does the tangent ratio represent?

Back

The tangent ratio represents the ratio of the opposite side to the adjacent side (Opp/Adj).