The perimeter of a regular heptagonal shaped piece of flat steel is 42 in., six inches per side. If a welder is to cut another piece of flat steel that is similar but with a 77 in. perimeter, what is the length of each side?
A) 11 in.
B) 15 in.
C) 5 in.
D) 19 in.
E) 7.4 in.

Question

Quizplus · Accepted Answer

The perimeter of a similar heptagon is 77 inches. Since the original heptagon has a perimeter of 42 inches with each side being 6 inches, the scale factor is 77/42. Multiply the original side length (6 inches) by this scale factor to find the new side length: 6 * (77/42) = 11 inches.

The Perimeter of a Regular Heptagonal Shaped Piece of Flat