A four sided regular polygon with one angle 90^o is called

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

179^o is an example of

When two line segments meet at point forming right angle they are said to be _________ to each other.

89^o is an example of

At 3 o'clock the angle formed between the two hands of a clock is

The common end point where the two rays meet is called

At 5:20 the angle formed between the two hands of a clock is

In figure angle AOB=

At 6 o' clock the angle formed between the hands of a clock is