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The sides of a rectangle are in a 3 : 4 ratio. What is the length of the shorter sides of the rectangle if its perimeter is 42 cm?

The sides of a rectangle are in a 3 : 4 ratio. What is the length of the shorter sides of the rectangle if its perimeter is 42 cm?
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5 votes
The sides of a rectangle are in a 3 : 4 ratio. What is the length of the shorter sides of the rectangle if its perimeter is 42 cm?

User Hugo H
by
7.7k points

1 Answer

6 votes
P = 2(L+W)
so
42/2 = 21

21 / 7= 3

3 x 3 = 9
3 x 4 = 12

answer

the length of the shorter side is 9
User Guillermo
by
8.2k points
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