SOLUTION: The area and the perimeter is 30, what kind of structure are we looking at, and what are the length of the sides.

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Question 964894: The area and the perimeter is 30, what kind of structure are we looking at, and what are the length of the sides.
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
Dimensions, x and y.

Handling as if for a rectangle,


system%282x%2B2y=30%2Cxy=30%29

system%28x%2By=15%2Cxy=30%29

y=15-x;
x%2815-x%29=30
15x-x%5E2=30
15x-x%5E2-30=0
-15x%2Bx%5E2%2B30=0
x%5E2-15x%2B30=0
-
15%5E2-4%2A30=105

x=%2815%2B-+sqrt%28105%29%29%2F2

x=2.38 or x=12.62
y=12.62 or y=2.38

The question seems open enough for other figures, but a rectangle is a valid possibility.