Degrees and Radians

Front

How many radians does a circle have?

Back

A circle has 2π radians.

Front

What is 7π/4 radians in degrees?

Back

7π/4 radians is equal to 315 degrees.

Front

Convert 720 degrees to radians.

Back

720 degrees is equal to 4π radians.

Front

What are the positive and negative coterminal angles of -225 degrees?

Back

The positive coterminal angle is 135 degrees, and the negative coterminal angle is -585 degrees.

Front

Convert π radians to degrees.

Back

π radians is equal to 180 degrees.

Front

What is the relationship between degrees and radians?

Back

Degrees and radians are two units for measuring angles; 180 degrees is equal to π radians.

Front

How many degrees are in a full circle?

Back

There are 360 degrees in a full circle.

Front

What is the radian measure of 90 degrees?

Back

90 degrees is equal to π/2 radians.

Front

Convert 180 degrees to radians.

Back

180 degrees is equal to π radians.

Front

What is the radian measure of 270 degrees?

Back

270 degrees is equal to 3π/2 radians.