SOLUTION: A rectangle has dimensions of 60 by 40. The longer sides of the rectangle increase
by 20%, and the shorter sides decrease by 20% to create a new rectangle. Find the
ratio of the
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-> SOLUTION: A rectangle has dimensions of 60 by 40. The longer sides of the rectangle increase
by 20%, and the shorter sides decrease by 20% to create a new rectangle. Find the
ratio of the
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Question 230809: A rectangle has dimensions of 60 by 40. The longer sides of the rectangle increase
by 20%, and the shorter sides decrease by 20% to create a new rectangle. Find the
ratio of the new rectangle’s perimeter to the old rectangle’s perimeter. Answer by ankor@dixie-net.com(22740) (Show Source):
You can put this solution on YOUR website! A rectangle has dimensions of 60 by 40.
The longer sides of the rectangle increase by 20%,
and the shorter sides decrease by 20% to create a new rectangle.
Find the ratio of the new rectangle’s perimeter to the old rectangle’s perimeter.
:
Find the original rectangles perimeter
P = 2(60) + 2(40)
P = 200
:
Longer side increase of 20%
1.2*60 = 72
shorter side decrease of 20%
.8*40 = 32
:
New perimeter
p = 2(72) + 2(32)
p = 208
:
Ratio new p to old p: =
