Trig ratios

Front

What are the three primary trigonometric ratios?

Back

Sine (sin), Cosine (cos), Tangent (tan)

Front

Define Sine (sin) in a right triangle.

Back

Sine is the ratio of the length of the opposite side to the length of the hypotenuse.

Front

Define Cosine (cos) in a right triangle.

Back

Cosine is the ratio of the length of the adjacent side to the length of the hypotenuse.

Front

Define Tangent (tan) in a right triangle.

Back

Tangent is the ratio of the length of the opposite side to the length of the adjacent side.

Front

What is the formula for finding the hypotenuse using sine?

Back

Hypotenuse = opposite / sin(angle)

Front

What is the formula for finding the opposite side using sine?

Back

Opposite = hypotenuse * sin(angle)

Front

What is the formula for finding the adjacent side using cosine?

Back

Adjacent = hypotenuse * cos(angle)

Front

What is the formula for finding the hypotenuse using cosine?

Back

Hypotenuse = adjacent / cos(angle)

Front

What is the formula for finding the opposite side using tangent?

Back

Opposite = adjacent * tan(angle)

Front

What is the formula for finding the adjacent side using tangent?

Back

Adjacent = opposite / tan(angle)