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  • 16-11-2016
  • Mathematics
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The area of a rectangle is 120 cm^2. The width is 30 cm. Find the perimeter. Please explain!

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vargrads vargrads
  • 16-11-2016
A=120cm^2
A=l*w
w=30

120=l*30     divide 30 from both sides to get rid of it

40=l

length is 40 cm
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