Question

a big square is formed from 9 small squares. the perimeter of each small square is 40cm. find the area of the big square.

Answer 1

what is the formula??

Answer 2

you should divide the perimeter of the small square into 4 so that you would get one side of the small square.(it is square, it has equal sides)

Answer 3

And you have 9 of them, so find the area of one of them and multiply it by 9

Answer 4

is 90 will be the answer??

Answer 5

no

Answer 6

900

Answer 7

indeed

Answer 8

perimeter = 40
so each side as length 10
and are = 10^2 = 100

Answer 9

900

Answer 10

what will be the unit??