Sine, Cosine, and Tangent Ratios

Front

What is the definition of sine in a right triangle?

Back

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

Tags

CCSS.HSG.SRT.C.6

Front

What is the definition of cosine in a right triangle?

Back

Cosine (cos) is the ratio of the length of the adjacent side to the length of the hypotenuse.

Tags

CCSS.HSG.SRT.C.6

Front

What is the definition of tangent in a right triangle?

Back

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

Tags

CCSS.HSG.SRT.C.6

Front

From angle C, which side is opposite to it?

Back

The side that does not touch angle C.

Front

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

Back

Sine (sin).

Tags

CCSS.HSG.SRT.C.6

Front

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

Back

Cosine (cos).

Tags

CCSS.HSG.SRT.C.6

Front

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

Back

Tangent (tan).

Tags

CCSS.HSG.SRT.C.6

Front

What is the formula for finding sine?

Back

sin A = opposite / hypotenuse.

Tags

CCSS.HSG.SRT.C.6

Front

What is the formula for finding cosine?

Back

cos A = adjacent / hypotenuse.

Tags

CCSS.HSG.SRT.C.6

Front

What is the formula for finding tangent?

Back

tan A = opposite / adjacent.

Tags

CCSS.HSG.SRT.C.8