Trigonometry - basics

Front

True or False: The inverse trig functions (arc cos, arc sin, and arc tan) are used to determine the degree of an angle.

Back

True

Front

What is the side of the right triangle that is opposite to the right angle called?

Back

Hypotenuse

Front

Which trig function relates the opposite side and the adjacent side?

Back

Tangent

Front

Which trig function relates the opposite side and the hypotenuse?

Back

Sine

Front

Which trig function relates the adjacent side and the hypotenuse?

Back

Cosine

Front

What is the definition of sine in 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 definition of cosine in 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 definition of tangent 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 Pythagorean theorem?

Back

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

Front

What is the range of the sine function?

Back

The range of the sine function is from -1 to 1.