SOLUTION: Draw a rectangle that has a area of 36 cm sq. and a perimeter of 40 cm.

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Question 872155: Draw a rectangle that has a area of 36 cm sq. and a perimeter of 40 cm.
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
x and y dimensions;
xy=36 and 2x%2B2y=40.

x%2By=20;
y=20-x.
x%2820-x%29=36
20x-x%5E2=36
-x%5E2%2B20x-36=0
x%5E2-20x%2B36=0
%28x-2%29%28x-18%29=0
Can you do the rest?