A rectangular countertop has a perimeter of 26 feet. its area is 30 square feet. what are the dimensions of the counter?
1 answer:
P=26=2*(l+L)
⇒ l+L=26:2=13 feet
l=3, L=10
A=l*L=30=10*3
⇒ l=3 feet
L=10 feet
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