Geo- Trigonometric ratios

Front

What is the definition of sine in a right triangle?

Back

Sine (sin) of an angle 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) of an angle is the ratio of the length of the adjacent side to the length of the hypotenuse.

Front

What is the definition of tangent in a right triangle?

Back

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

Front

What is the sine ratio for angle y if sin(y) = 12/18?

Back

sin(y) = 12/18 can be simplified to sin(y) = 2/3.

Front

What is the cosine ratio for angle y if cos(y) = 18/12?

Back

cos(y) = 18/12 can be simplified to cos(y) = 3/2.

Front

How do you find the unknown side using sine?

Back

Use the formula: sin(angle) = opposite/hypotenuse.

Front

How do you find the unknown side using cosine?

Back

Use the formula: cos(angle) = adjacent/hypotenuse.

Front

How do you find the unknown side using tangent?

Back

Use the formula: tan(angle) = opposite/adjacent.

Front

What is the correct setup to find x if sin(29°) = x/91?

Back

The correct setup is sin(29°) = x/91.

Front

What is the correct setup to find x if tan(29°) = 91/x?

Back

The correct setup is tan(29°) = 91/x.