Dear Friends, Please help on this problem :-

Cindy draws 3 Squares with different sizes. The sides of Square B is 3/5 the total sides of Square A and C. The sides of Square C is 1/7 of the total sides of Square A and B. if the area of Square A is 144sqcm, what is the total area of the 3 squares?

1 answer

Apparently the sides are in the ratio

b = 3/5 (a+c)
c = 1/7 (a+b)
a^2 = 144

a,b,c = 12,9,3
so, area = 144+81+9 = 234