Sine, Cosine, & Tangent Review

Front

What are the three primary trigonometric functions?

Back

Sine, Cosine, and Tangent.

Tags

CCSS.HSG.SRT.C.6

Front

What is the sine function defined as in a right triangle?

Back

The ratio of the length of the opposite side to the length of the hypotenuse.

Tags

CCSS.HSG.SRT.C.6

Front

How do you calculate the cosine of an angle in a right triangle?

Back

Cosine 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 tangent function in terms of sine and cosine?

Back

Tangent is the ratio of sine to cosine (tan = sin/cos).

Tags

CCSS.HSF.TF.A.2

Front

What is the formula to find the sine of an angle?

Back

sin(θ) = opposite/hypotenuse.

Tags

CCSS.HSG.SRT.C.6

Front

What is the formula to find the cosine of an angle?

Back

cos(θ) = adjacent/hypotenuse.

Tags

CCSS.HSG.SRT.C.6

Front

What is the formula to find the tangent of an angle?

Back

tan(θ) = opposite/adjacent.

Tags

CCSS.HSG.SRT.C.8

Front

How do you solve for a side in a right triangle using sine?

Back

Rearrange the sine formula: w = sin(θ) * hypotenuse.

Tags

CCSS.HSG.SRT.C.8

Front

What is the value of sin(40 degrees)?

Back

Approximately 0.6428.

Front

If sin(θ) = 0.5, what is θ?

Back

θ = 30 degrees or 150 degrees.

Tags

CCSS.HSF.TF.B.7