The correct answer is D
Explanation
The perimeter is the sum of the lengths of all the sides. Since each of the seven sides is to be increased by 2, there will be a total increase of 14 in the perimeter. The original perimeter, 15, plus the increase, 14, gives the new perimeter, 29.
Mathematics > Standard Multiple Choice
Read the following SAT test question and then click on a button to select your answer.
The perimeter of a 
- sided figure is 
. If the length of each side of the figure is increased by
units, what is the perimeter of the new figure?
(A) 17
(B) 22
(C) 24
(D) 29
(E) 30
