Trig Ratios

Front

What is the definition of cosine in a right triangle?

Back

Cosine (cos) is defined as the ratio of the length of the adjacent side to the length of the hypotenuse.

Front

What is the sine ratio in a right triangle?

Back

Sine (sin) is defined as the ratio of the length of the opposite side to the length of the hypotenuse.

Front

What is the tangent ratio in a right triangle?

Back

Tangent (tan) is defined as the ratio of the length of the opposite side to the length of the adjacent side.

Front

Back

Front

What is the relationship between sine and cosine?

Back

Sine and cosine are complementary functions: sin(A) = cos(90° - A).

Front

What is the Pythagorean identity involving sine and cosine?

Back

Front

What is the sine of angle A if the opposite side is 12 and the hypotenuse is 37?

Back

Front

What is the cosine of angle A if the adjacent side is 40 and the hypotenuse is 41?

Back

Front

What is the tangent of angle A if the opposite side is 9 and the adjacent side is 40?

Back

Front

Back