Question

if the perimeter of parallelogram is 140 M the distance between a pair of opposite side is 7 M and its area is 210 square metre find the length of two adjacent sides of parallelogram​

Answer 1

Perimeter= 2( A + B)

140= 2(A+B)

A+B = 70

A= 70-B

Area = base * height

210 = (70-B ) 7

30 = 70 - B

B= 40

But, A= 70-B

= 70 - 40

= 30

Here A and B were the sides

Since opposite sides of a parallelogram are equal

Length of sides are 30m and 40m