Question 282194: A rectangular field is 12cm longer than it is wide. Its perimeter is 52 cms
find the width???? how i do this Answer by oberobic(2304) (Show Source):
You can put this solution on YOUR website! Perimeter = P = 2L + 2W
P = 52
L = W+12 :: Length is 12 more than width, so you'd have to add 12 to L to make it equal.
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2L + 2W = 2(L+W)
2(L+W) = 52
L+W = 26
(W+12)+W = 26
2W+12=26
2W = 14
W = 7
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L=W+12
L=7+12
L=19
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Check perimeter to be sure it is 52.
2(7+19) = 2(26) = 52
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State answer:
W = 7
L = 19
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Done
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