A regular polygon has perimeter 108 cm and each side has length 12 cm.  How many sides does this polygon have?
A regular polygon is a polygon with equal sides and angles. If each side is 12 cm, then I can divide the perimeter by 12 to get the number of sides. So 108 divided by 12 is 9. This means the polygon has 9 sides. I can check my answer by multiplying 9 by 12 and seeing if I get 108. Yes, 9 times 12 is 108, so I'm confident that 9 is the correct answer. 