Trigonometry

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 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 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 hypotenuse in a right triangle?

Back

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

Front

What is the opposite side in relation to an angle in a right triangle?

Back

The opposite side is the side that is opposite to the angle being considered.

Front

What is the adjacent side in relation to an angle in a right triangle?

Back

The adjacent side is the side that is next to the angle being considered, excluding the hypotenuse.

Front

If cos B = 5/13, what is the length of the adjacent side if the hypotenuse is 13?

Back

The length of the adjacent side is 5.

Front

If sin A = 3/5, what is the length of the opposite side if the hypotenuse is 5?

Back

The length of the opposite side is 3.

Front

What type of triangle is studied in trigonometry?

Back

Right triangle.

Front

What is the formula for finding the tangent of an angle?

Back

Tangent = Opposite / Adjacent.