Question

If there is a parallelogram named abcd and ab=7x-4 , cd=2x+21 then find ab's and cb's length

Answer 1

Answer:

Here,AB=CD

so,

7x-4=2x+21

7x-2x=21+4

5x=25

x=5

=>7(5)-4 or. 2(5)+21

= 35-4. or. 10+21

=31,31

so,length of AB and CD=31cm