Trigonometry

Front

What is the definition of the opposite side in a right triangle?

Back

The opposite side is the side opposite to the angle in question.

Front

What is the definition of the adjacent side in a right triangle?

Back

The adjacent side is the side next to the angle in question, excluding the 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?

Back

The sine function is defined as the ratio of the length of the opposite side to the length of the hypotenuse.

Front

What is the cosine function?

Back

The cosine function is defined as the ratio of the length of the adjacent side to the length of the hypotenuse.

Front

What is the tangent function?

Back

The tangent function is defined as the ratio of the length of the opposite side to the length of the adjacent side.

Front

How do you find the sine of an angle?

Back

To find the sine of an angle, divide the length of the opposite side by the length of the hypotenuse.

Front

How do you find the cosine of an angle?

Back

To find the cosine of an angle, divide the length of the adjacent side by the length of the hypotenuse.

Front

How do you find the tangent of an angle?

Back

To find the tangent of an angle, divide the length of the opposite side by the length of the adjacent side.

Front

What is the relationship between sine, cosine, and tangent?

Back

Tangent can be expressed as the ratio of sine to cosine: tan(x) = sin(x)/cos(x).