Question

if a parallelogram is cyclic , then it isa rectangle . justify .please help me i have a exam please 9 th class​

Answer 1

Step-by-step explanation:

The ABCD is a cyclic parallelogram

Then ∠A=∠C (Opposite angle of parallelogram )

In cyclic parallelogram ABCD

<A+<C=180

(Sum of Opposite angle of cyclic parallelogram=180 degree )

= 2∠A=180

= 2∠A=180

=90

And ∠B=∠D (Opposite angle of parallelogram )

2<B = 180

angle B = 180/2

angleB = 90 degrees

So in parallelogram ABCD all angle are right angle then ABCD is a rectangle

Answer 2

hope it's helpful mark as me brainlist please