Students measure the sides of a polygon with a ruler. They add the lengths of each side to find the perimeter
A. Identify the perimeter of a polygon
C. Find the perimeter of a triangle
D. Find the perimeter of a rectangle
E. Find the perimeter of a polygon
F. Find the perimeter of a pentagon
G. Find the length of an unknown side of a triangle
H. Find the length of an unknown side of a quadrilateral
I. Find the perimeter of a equal-sided polygon using multiplication