Review Tangent Sine Cosine Part 2

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.

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.

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.

Front

What is the formula for tangent?

Back

tan(θ) = opposite/adjacent.

Front

What is the formula for sine?

Back

sin(θ) = opposite/hypotenuse.

Front

What is the formula for cosine?

Back

cos(θ) = adjacent/hypotenuse.

Front

If sin(θ) = 0.5, what is θ?

Back

θ = 30° or 150°.

Front

If cos(θ) = 0.5, what is θ?

Back

θ = 60° or 300°.

Front

If tan(θ) = 1, what is θ?

Back

θ = 45° or 225°.

Front

Solve for x: sin 30 = x/10.

Back

x = 5.