____ are used for drawing parallel and perpendicular lines.

The angle between two perpendicular lines is

How many angles are there in 

The division of a circle into 360 equal parts is mentioned in which Veda in India.

An instrument used to measure angle is

Angle between two parallel lines is

If we divide a circle into 5 equal parts, then what is the angle measure of each angle?

The angles in a rectangle is 

Each angle in a regular hexagon is

The angle measure of a straight line is