Walk around the edge of a rug with a seven-year-old, counting steps, and you have already measured a perimeter. The word is new; the idea is not. This 2nd grade perimeter of polygons worksheet turns that walk into addition. Four shapes sit in rounded frames, each side labeled with its length: a hexagon with 2 in sides, a pentagon with 3 ft sides, a rectangle of 6 cm by 2 cm and a diamond with 4 m sides. Your child adds every side and writes the total with its unit. Equal sides repeat, so a quick double check is always possible once the total is written. A second page gives the answer key.