M II 4.2.2 ID which trig ratio to use.

Front

What is the Sine Ratio in a right triangle?

Back

The Sine Ratio is defined as the ratio of the length of the opposite side to the length of the hypotenuse.

Front

What is the Cosine Ratio in a right triangle?

Back

The Cosine Ratio is defined as the ratio of the length of the adjacent side to the length of the hypotenuse.

Front

What is the Tangent Ratio in a right triangle?

Back

The Tangent Ratio is defined as the ratio of the length of the opposite side to the length of the adjacent side.

Front

When should you use the Sine Ratio?

Back

Use the Sine Ratio when you need to find a side length or angle in a right triangle where you know the opposite side and the hypotenuse.

Front

When should you use the Cosine Ratio?

Back

Use the Cosine Ratio when you need to find a side length or angle in a right triangle where you know the adjacent side and the hypotenuse.

Front

When should you use the Tangent Ratio?

Back

Use the Tangent Ratio when you need to find a side length or angle in a right triangle where you know the opposite side and the adjacent side.

Front

What is the relationship between the three trigonometric ratios?

Back

The three trigonometric ratios (Sine, Cosine, and Tangent) are related through the Pythagorean theorem and can be used to solve for unknown sides or angles in right triangles.

Front

What is the formula for the Sine Ratio?

Back

Sine = Opposite / Hypotenuse.

Front

What is the formula for the Cosine Ratio?

Back

Cosine = Adjacent / Hypotenuse.

Front

What is the formula for the Tangent Ratio?

Back

Tangent = Opposite / Adjacent.