Question

If the perimeter of a parallelogram is 140m the distance between a pair of opposite sides is 7 m and its area is 210 sq.m, find the length of two adjacent sides of the parallelogram

Answer 1

Let the adjacent sides of a parallelogram is a and b Perimeter =140m 2(a+b)=140 a+b= 70-----(1) Height (h) = distance between two parallel sides =7 cm Area =210 m^2 a* h =210 a*7=210 a = 210/7 a =30 cm Substitute a value in (1) U get. b = 40 cm