Mathematics Basics of Angles , Types of Angles

ANGLES

In Plane Geometry, a figure which is  formed by two rays or lines that shares a  common endpoint is called an angle. The  word “angle” is derived from the Latin  word  “angulus” , which means “corner”. The two  rays are called the sides of an 

 angle, and  the common endpoint is called the vertex.

Types of angles:-

Zero Angle         = 0 degree

Acute Angle       = The angle which is greater than 0 degree and less than 90 degree.

Right Angle       = 90 degree

Obtuse Angle    = The angle which is greater than 90 degree and less than 180 degree.

Straight Angle   = 180 degree.

Reflex Angle       = The angle which is greater than 180 degree and less than 360 degree.

Complete Angle = 360 degree.