Question

the ratio of two adjacent sides of a parallelogram is 2:3 its perimeter is 50cm find its are corresponding to the larger side is 10cm

Answer 1

if you are asking about sum of sides adjacent to diagonal then here's the answer...
we know perimeter is 50 also the sum of other two sides is 25 there fore consider the sides are 2 and 3 centimeters or you can consider 4,6 8,12 etc. now diagonal a+b=25
now a/b=2/3 therefore b=15, a=10