Math 2 Trig Review

Front

What is the Cosine Ratio?

Back

The Cosine Ratio is defined as the ratio of the length of the adjacent side to the length of the hypotenuse in a right triangle.

Front

What is the Sine Ratio?

Back

The Sine Ratio is defined as the ratio of the length of the opposite side to the length of the hypotenuse in a right triangle.

Front

What is the Tangent Ratio?

Back

The Tangent Ratio is defined as the ratio of the length of the opposite side to the length of the adjacent side in a right triangle.

Front

When should you use the Cosine Ratio?

Back

Use the Cosine Ratio when you have the lengths of the adjacent side and the hypotenuse, or when you need to find an angle in a right triangle.

Front

When should you use the Sine Ratio?

Back

Use the Sine Ratio when you have the lengths of the opposite side and the hypotenuse, or when you need to find an angle in a right triangle.

Front

When should you use the Tangent Ratio?

Back

Use the Tangent Ratio when you have the lengths of the opposite side and the adjacent side, or when you need to find an angle in a right triangle.

Front

What is the formula for the Cosine Ratio?

Back

Cosine(θ) = Adjacent / Hypotenuse.

Front

What is the formula for the Sine Ratio?

Back

Sine(θ) = Opposite / Hypotenuse.

Front

What is the formula for the Tangent Ratio?

Back

Tangent(θ) = Opposite / Adjacent.

Front

If the adjacent side is 24 and the hypotenuse is 25, what is the Cosine Ratio?

Back

Cosine(θ) = 24/25.