Need math help!! how do i found out which one has the greatest area ?

Can anyone explain to me how to figure this out I'm assuming it would be the biggest shape but not sure if there is so logic formula to use or not

ANDY2015-08-28T07:40:40Z

Hello

If we say the P = 16Cm A is Square, B Length = 5Cm Width = 3Cm, C Length = 6Cm Width = 2Cm. (All add up to P = 16
A = (4 X 4) = 16 Sq Cm. B = (5 X 3) = 15 Sq Cm. C = (6 X 2) = 12 Sq Cm.

Andy C

?2015-08-28T07:17:55Z

The rectangle that has the largest area

for a given perimeter is a square. So, in

this problem, which rectangle is the

closest in shape to a square?