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

What is the hypotenuse in a right triangle?

Back

The hypotenuse is the longest side of a right triangle, opposite 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

How do you calculate the length of the opposite side using sine?

Back

Opposite side = Hypotenuse × sin(θ), where θ is the angle.

Front

How do you calculate the length of the adjacent side using cosine?

Back

Adjacent side = Hypotenuse × cos(θ), where θ is the angle.

Front

How do you calculate the length of the opposite side using tangent?

Back

Opposite side = Adjacent side × tan(θ), where θ is the angle.

Front

What is the Pythagorean theorem?

Back

In a right triangle, a² + b² = c², where c is the hypotenuse and a and b are the other two sides.