SOLUTION: 25: The length of a rectangle is three times its width. If the perimeter of the rectangle is 48, what is its area?
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Question 175364: 25: The length of a rectangle is three times its width. If the perimeter of the rectangle is 48, what is its area? Answer by monika_p(71) (Show Source):
You can put this solution on YOUR website! x-widht
y=3x-lenght
P=48
Perimeter formula: P=2*widht+2*lenght
Area formula: A=widht*lenght
Find x from perimeter formula:
48=2*x+2*3x
48=8x
x=6 widht then lenght y=18
Now find A
A=6*18=108
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