Perimeter, Composite Figures, & Finding the Missing Side Lengths! Looking for a fun and effective way to help your 2nd and 3rd graders master perimeter? This FREE Perimeter Practice & Review Booklet is packed with engaging activities that make learning perimeter of polygons, composite figures, and finding missing side lengths a breeze! Inside this easy-to-use booklet, students will: ✅ Find the perimeter of various shapes ✅ Solve for missing side lengths using given information ✅ Tackle