Question

Let ABCD be a parallelogram. What special name will you give it:(a) if AB = BC?(b) if ∠BAD = 90°?(c) if AB = AD and ∠BAD =90°?

Answer 1

Solution :

In ABCD be a parallelogram ,

i ) if AB = BC then ABCD is a Rhombus.

[ In a parallelogram one pair of

adjacent sides are equal and is

called Rhombus ]

ii ) If <BAD = 90° then ABCD is a

Rectangle.

[ In a parallelogram one angle equal

to right angle it is called Rectangle .]



iii ) if AB = AD and <BAD = 90° then

ABCD is a Square.

[ A parallelogram has its adjacent

sides equal and one angle is 90°

is called a Square ]



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