Question

Prove that the bisector of a linear pair are at right angles. [Given angle 1= angle 2 & angle 3= angle 4] Prove angle DOC =90°

Answer 1

Answer:

we know that linear pair of angle is180 degrees.

angle bisector means it divides the angle into two equal angles.

so,180/2=90 degrees.

that means each angle should be 90 degree. And we  know that 90 degree is known as

right angle .hence proved.