Trig Practice

Front

What is the Tangent function?

Back

The Tangent function (tan) is a trigonometric function defined as the ratio of the opposite side to the adjacent side in a right triangle.

Front

How do you find the measure of an angle using the Tangent function?

Back

To find an angle using the Tangent function, use the formula: angle = tan^(-1)(opposite/adjacent).

Front

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

Back

The sine of an angle (sin) is defined as the ratio of the length of the opposite side to the length of the hypotenuse in a right triangle.

Front

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

Back

The cosine of an angle (cos) is defined as the ratio of the length of the adjacent side to the length of the hypotenuse in a right triangle.

Front

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

Back

The relationship is: tan(X) = sin(X)/cos(X).

Front

How do you round a number to the nearest tenth?

Back

To round to the nearest tenth, look at the hundredths place. If it's 5 or more, round up; if it's less than 5, round down.

Front

What is the Pythagorean theorem?

Back

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

Front

What is the value of sin(90°)?

Back

sin(90°) = 1.

Front

What is the value of cos(0°)?

Back

cos(0°) = 1.

Front

What is the value of tan(45°)?

Back

tan(45°) = 1.