Identify Trig Ratios

Front

What is the definition of a right triangle?

Back

A right triangle is a triangle that has one angle measuring 90 degrees.

Front

What are the three sides of a right triangle called?

Back

The three sides are called the opposite side, adjacent side, and hypotenuse.

Front

How do you identify the hypotenuse in a right triangle?

Back

The hypotenuse is the side directly across from the right angle.

Front

What is the sine function in relation to a right triangle?

Back

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

Front

What is the cosine function in relation to a right triangle?

Back

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

Front

What is the tangent function in relation to a right triangle?

Back

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

Front

If the opposite side is 30 and the hypotenuse is 34, what is the sine of the angle?

Back

Sine = opposite/hypotenuse = 30/34 = 0.882.

Front

If the adjacent side is 24 and the hypotenuse is 25, what is the cosine of the angle?

Back

Cosine = adjacent/hypotenuse = 24/25 = 0.96.

Front

If the opposite side is 16 and the adjacent side is 24, what is the tangent of the angle?

Back

Tangent = opposite/adjacent = 16/24 = 0.667.

Front

What is the Pythagorean theorem?

Back

In a right triangle, a² + b² = c², where c is the hypotenuse.