Posted by ed on Wednesday, March 9, 2011 at 10:44pm.
my son has to draw a figure with an area of 63 and a perimeter of 32.how do he go about doing it?

math  Reiny, Wednesday, March 9, 2011 at 10:49pm
what kind of figure?
circle?, square?, triangle? , rectangle?, ......

math  Ms. Sue, Wednesday, March 9, 2011 at 10:53pm
Area of a rectangle = length times width
The factors of 63 are:
3 * 21
9 * 7
Perimeter = 2 times length plus 2 times width
The rectangle can't be 3 by 21 since its perimeter would be 6 + 42
The dimensions must be 9 by 7.
(2 * 9) + (2 * 7) = 18 + 14 = 32
He needs to draw a rectangle that measures 9 by 7.
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