Rectangle a parallelogram whose each angle is a right angle is called a rectangle.

Right triangle a triangle whose one angle is a right angle is called a right-angled triangle or a right triangle.

In a parallelogram if each angle is equal then it is called a

A quadrilateral whose each angle is a right angle is a square (b) rectangle rhombus (d) parallelogram

AB,CD are two parallel lines and a transversal l intersects AB at X and CD at Y Prove that the bisectors of the interior angles form a parallelogram,with all its angles right angles i.e.,it is a rectangle.

Property 1each angle of a rectangle is a right angle.

RIGHT TRIANGLE A triangle whole one angle is a right angle is called a right-angled triangle or right triangle.

Show that each angle of a rectangle is a right angle.