A rectangle field that is twice as long as it is broad has an area of 14450 square meters, what is its perimeter?

A) 85 m

B) 510 m

C) 165 m

D) 170 m

Let X = the breadth of the field in meters

Then the length is 2X

The area is the product of the breadth and length X(2X) = 2(X**2) = 14450

14450 / 2 = 7225

X = square root (7225) = 85

2X =170

The perimeter (distance around) is 2(X + 2X) = 6X

The perimeter is 510 meters.

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