Biggest area for smallest perimiter is a circle
she has perimiter aka circumference=2pir
72=2pir
divide both sides by 2
36=pir
divid both sides by pi
11.4592=r
radius=11.4 feet
circle is biggest area
one tip:
Example: 4 - (-3)
it instantly becomes positive because the negatives are close to each other as shown.
hope that helps :)
She is not correct, since the combined length of both boards is more than 2 feet
Sherry sold 3672 tickets because 459 times 8 equals 3672