Complete:

The circular (radian) measure of a _____ angle is $\frac{\pi}{2}$ . 

Is the sentence true or false?

In any circle, the angle subtended at its centre by an arc of the circle whose length is equal to the radius of the circle is called a degree.

Complete:

In Centesimal System, an angle is measured in grades, minutes and seconds. In this system, a right angle is divided into _______equal parts and each such part is called a Grade.

Complete:

In Circular System, an angle is measured in_______.

Complete:

A complete rotation describes ___.

Is the sentence true or false?

1 revolution =360°

Complete:

A complete rotation describes ___.

Is the sentence true or false?

In higher mathematics angles are usually measured in circular system.

Complete:

The circular (radian) measure of a _____ angle is .

Is the sentence true or false?

A radian is an angle subtended at the center of a circle by an arc whose length is equal to the radius.