Question 1026754
side  of one square  be x

Area = x

side of other square = y

area of square = y^2

sum of perimeters
4x+4y =100
x+y=25....................(1)

Difference between areas
x^2-y^2=225

(x+y)(x-y)=225
but (x+y) =25
(x-y) = 9..................(2)

add (1) & (2)
2x =34
x=17
y=8

sum of areas

x^2+y^2= 17^2+8^2 =353