A small farm field is a square measuring 280 ft on a side. What is the perimeter of the field? If you double the length of each side of the field, what is the new perimeter?

Suppose side of the square farm = x ft

area of farm = x^2 = 280

x = sqrt (280) = 16.733 feet

Perimeter of the square farm = 4 times the side length

= 4 * 16.733

= 66.93 ft

If the length is doubled the new length = 2 * 16.733 = 33.46

The new perimeter = 4 times the length of side = 4 * 33.46 = 133.86 feet

Answer : 66.93 and 133.86