24-25 Radians & Degrees REVIEW

Front

What is a radian?

Back

A radian is a unit of angular measure defined as the angle subtended at the center of a circle by an arc equal in length to the radius of the circle.

Front

How many degrees are in one radian?

Back

One radian is approximately 57.2958 degrees.

Front

What is the relationship between degrees and radians?

Back

Degrees can be converted to radians using the formula: radians = degrees × (π/180).

Front

What is a coterminal angle?

Back

Coterminal angles are angles that share the same terminal side when drawn in standard position. They can be found by adding or subtracting multiples of 360 degrees or 2π radians.

Front

How do you find a coterminal angle for 38 degrees?

Back

To find a coterminal angle, you can add or subtract 360 degrees. For example, 38 + 360 = 398 degrees.

Front

What is the standard position of an angle?

Back

An angle is in standard position when its vertex is at the origin and its initial side lies along the positive x-axis.

Front

What is the sine of a 45-degree angle?

Back

Front

What is the cosine of a 30-degree angle?

Back

Front

What is the tangent of a 60-degree angle?

Back

Front

In a 45-45-90 triangle, what are the lengths of the legs?

Back