A quadrilateral whose all four sides are equal and all four angles are 90^o is called a:

89^o is an example of :

Each angle of a square is measure of:

Shape of an egg is :

Number of rays that can be drawn from a given point is :

The sum of angles in a triangle is:

An angle which measures 0^o is called :

When two line segments meets at a point forming right angle they are said to be ________ to each other.

Angles are measured in

A _______ has 2 pairs of adjacent sides that are equal.