Question

big square consists of two smaller squares and two rectangles. Find the area of each of the smaller squares and rectangles. Also find the total of their areas​

Answer 1

(a+b)^2 = a^2 + b^2 + 2ab

Look at the given figure:
area of the big square (with side equals a+b) is area of the small squares (of side a and b respectively m) and the area of the two rectangles (each rectangle having side a and b).