SOLUTION: The length of one side of a rectangle is 5 cm longer than the other side if the perimeter is 90 cm, how long is each side ?

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Question 1156214: The length of one side of a rectangle is 5 cm longer than the other side if the perimeter is 90 cm, how long is each side ?
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
perimeter is 2L+2W so half perimeter (45) is L+W
width = x
length= x+5
their sum is 2x+5=45
2x=40
x=20 cm width
x+5=25 cm length