SOLUTION: The perimeter of a rectangle with length, l and width, w is given by P = 2w + 2l. If the perimeter of a certain rectangle is 78 centimeters and the width is 12 centimeters, what is
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Question 458982: The perimeter of a rectangle with length, l and width, w is given by P = 2w + 2l. If the perimeter of a certain rectangle is 78 centimeters and the width is 12 centimeters, what is the length? Please show all of your work.
Answer by nerdybill(7384) (Show Source): You can put this solution on YOUR website!
The perimeter of a rectangle with length, l and width, w is given by P = 2w + 2l. If the perimeter of a certain rectangle is 78 centimeters and the width is 12 centimeters, what is the length? Please show all of your work.
.
The problem gives you:
w = 12 cm
P = 78 cm
.
plug into and solve for L:
P = 2w + 2L
78 = 2(12) + 2L
78 = 24 + 2L
54 = 2L
27 cm = L (length)
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