https://www.khanacademy.org/math/class-6-ncf/x04ca845a9a148c80:perimeter-and-area/x04ca845a9a148c80:perimeter/v/perimeter-introduction-indian-accent 2025-05-30T05:30:36.604331212Z Perimeter: introduction Perimeter is a math concept that measures the total length around the outside of a shape. To find the perimeter, you add together the lengths of all the sides. This works for any shape, including triangles, rectangles, pentagons, and even irregular polygons. Skyloom (Dubbing) video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Perimeter: introduction Perimeter is a math concept that measures the total length around the outside of a shape. To find the perimeter, you add together the lengths of all the sides. This works for any shape, including triangles, rectangles, pentagons, and even irregular polygons. https://cdn.kastatic.org/ka-youtube-converted/eBavqDX5QSc.mp4/eBavqDX5QSc.mp4 179 Perimeter https://www.khanacademy.org/math/cc-third-grade-math/3rd-perimeter/imp-perimeter-word-problems/e/perimeter-word-problems 2026-04-08T00:16:02.937952483Z Perimeter word problems Practice solving real world word problems involving perimeter. Lindsay exercise https://www.khanacademy.org/math/class-6-ncf/x04ca845a9a148c80:perimeter-and-area/x04ca845a9a148c80:perimeter-of-polygons-with-missing-side-lengths/v/finding-missing-side-length-when-given-perimeter-indian-accent 2025-05-30T05:30:36.604331212Z Finding missing side length when given perimeter The video illustrates how to find the lengths of unknown sides on a shape by using the given perimeter and the lengths of known sides. Two examples are given, and in each case, the missing side lengths are determined to be 5 units. Skyloom (Dubbing) video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Finding missing side length when given perimeter The video illustrates how to find the lengths of unknown sides on a shape by using the given perimeter and the lengths of known sides. Two examples are given, and in each case, the missing side lengths are determined to be 5 units. https://cdn.kastatic.org/ka-youtube-converted/XEzrHkqp91A.mp4/XEzrHkqp91A.mp4 237 Perimeter https://www.khanacademy.org/math/cc-third-grade-math/3rd-perimeter/perimeter-of-polygons-with-missing-side-lengths/e/find-a-missing-side-length-when-given-perimeter 2025-06-24T14:43:14.98588327Z Find a missing side length when given perimeter Find a missing side length for a figure when given the perimeter. Lindsay exercise