A developer wants to enclose a rectangular grassy lot that b

A developer wants to enclose a rectangular grassy lot that borders a city street for parking. If the developer has 280 feet of fencing and does not fence the side along the street, what is the largest area that can be enclosed? 9800 ft^2 19, 600 ft^2 14, 700 ft^2 4900 ft^2

Solution

The largest are is enclosed when the rectange is a square. Thus if the perimeter is 280. each side should be 70 for a sqaure. because 4 times a side of square gives it\'s perimeter. Thus area is 70² that is 4900. option D