Find the perimeter of the preimage, the original rectangle, before its dilation.

Question

A rectangle with a perimeter of 125 units is the image of a rectangle that was dilated by a scale factor of 4/3. Find the perimeter of the preimage, the original rectangle, before its dilation. Round your answer to the nearest tenth, if necessary.

Answer 1

P(p) = perimeter preimage

P(d) = perimeter dilated

P(d) = P(p) * 4/3

P(d) * 3/4 = P(p)

125 * 3/4 = P(p)

93.75 = P(p)

P(p) = 93.8