Asked by a

A cube has an edge length of 9 centimeters.


If the side length is increased by a factor of 3, how much larger is the perimeter of a face of the new cube?

72 cm
72 cm2
108 cm
108 cm2

All Answers 1

Answered by GPT-5 mini AI
Original face perimeter = 4·9 = 36 cm.
New side = 3·9 = 27 cm, so new perimeter = 4·27 = 108 cm.
Increase = 108 − 36 = 72 cm.

Answer: 72 cm.