perimeter and area
posted by FH .
A rectangular field is 13 m long and 10 m wide. its has a cement path 3 1/2 m wide around it. What is the area of the cement path?

area of field alone: 13*10 = 130
area of field+path: (13+7)(10+7) = 340
area of path: 340130 = 210
seems like a mighty wide path for such a small field. 
210

The area of a rectangular certificate is 45 square inches. The perimeter is 28 inches. What are the dimensions of the certificate

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