Question

Find the area of the shaded region in the following figures ​

Answer 1

it is a square of length 20+5=25cm.

so area of big square=25*25=625cm^2.

now in triangle aoe: OE=20*20-5*5=375

now √375=19.36cm.

then sides of small square = 19.36

area of shaded region = 19.36*19.36 = 374.80