Isabella has 40 m of fence with which to build a rectangular horse corral.
What is the maximum area she can enclose?
Enter your answer in the box.
m²
The max area will be a circle
To find the radius....we have that...
Circumference = 2pi * radius
40 = 2p * radius [ divide both sids by 2 pi]
40 / (2 pi) = radius = 20 /pi
And the area of the circle is
pi * (radius)^2 =
pi * ( 20/pi)^2 =
400/pi m^2 ≈ 127.32 m^2
+-4 
