Question

area of parallelogram is 432 cm^2.If BC||AD and the distance between BC and AD is 20 cm, what is the measure of the side BC of parallelogramABCD.

Answer 1

area of parallelogram = base * height 
= BC * AD 
= BC * 20 

so BC * 20 = 432 
BC = 432/20 = 21.6