A rectangular field which is twice as long as it is broad has an are of 14450 M2 What is it perimeter?

Let the breadth of the rectangular field be ( b ) meters. Then, the length is ( 2b ) meters. The area is given by the formula ( \text{Area} = \text{length} \times \text{breadth} ), so we have ( 2b \times b = 14450 ). This simplifies to ( 2b^2 = 14450 ), leading to ( b^2 = 7225 ) and ( b = 85 ) meters. Thus, the length is ( 170 ) meters, and the perimeter is ( 2(\text{length} + \text{breadth}) = 2(170 + 85) = 510 ) meters.