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A rectangle has a perimeter of 84cm and a length of 30. what is its width?

A rectangle has a perimeter of 84cm and a length of 30. what is its width?
asked 122k views
1 vote
A rectangle has a perimeter of 84cm and a length of 30. what is its width?

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User Adam Quek
by
9.7k points

1 Answer

6 votes
P = 2(L + W)
P = 84
L = 30

84 = 2(30 + W)
84 = 60 + 2W
84 - 60 = 2W
24 = 2W
24/2 = W
12 = W....width is 12 cm
answered
User Austinstout
by
8.4k points
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