Formula for perimeter of rectangle: P=2(L+w) P=2L+2w Here Perimeter, p= 72 ft And scale factor of length and width=3.5 which means rectangle is enlarged. So perimeter of rectangle= 3.5 x 72 P=252ft
We know the perimeter of the original rectangle is 72ft. We also know that the perimeter P of the rectangle is defined as: P=2L+2W. So P is directly proportional to L+W. This means that if L or W were to get bigger, P will get bigger, and if L or W were to get smaller P will get smaller.
The question also states that both L and W are scaled by the same factor of 3.5 . This means the sum of the dimensions L+W is scaled by 3.5 It also means that the perimeter is upscaled by 3.5 as it is proportional to L+W. P = 72 ft × 3.5 = 252 ft.
