Question

What is the area of a square whose perimeter is 100 cm?

Answer 1

If the area of the square is 100 cm2, then all sides, being of equal length, are the root of 100 = 10.
Add the four sides to get the perimeter, 4 x 10 = 40

Answer 2

perimeter = 4a

area of the square = a^2

use this to solve your sum

Answer 3

First, solve for one side.\[s + s + s + s = 100\]\[\implies 4s = 100\]\[\implies s = {100 \over 4}\]\[\implies s = 25\]

Answer 4

Then find \(s \times s\) which is \(25 \times 25\).

Answer 5

@JeremyW24 did it the other way round.

Answer 6

Did that help? Or did I confuse you more ?

Answer 7

Thank you, everyone. :)

Answer 8

No problem @BatmanBane!! Hope that helped you!!