https://www.khanacademy.org/math/class-9-tg/x06d55bfa213a79fd:surface-areas-and-volumes/x06d55bfa213a79fd:surface-area-of-cuboid-and-cube/v/surface-area-of-a-box-cuboid-indian-accent 2025-06-06T15:33:38.563209632Z Surface area of a box (cuboid) Surface area is total area on the surface of a three-dimensional shape. To find the surface area of a cuboid which has 6 rectangular faces, add the areas of all 6 faces. Or, you can label the length (l), width (w), and height (h) of the cuboid and use the formula: surface area (SA)=2lw+2lh+2hw. Kalakrit (Dubbing) video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Surface area of a box (cuboid) Surface area is total area on the surface of a three-dimensional shape. To find the surface area of a cuboid which has 6 rectangular faces, add the areas of all 6 faces. Or, you can label the length (l), width (w), and height (h) of the cuboid and use the formula: surface area (SA)=2lw+2lh+2hw. https://cdn.kastatic.org/ka-youtube-converted/a_6u4T5nODA.mp4/a_6u4T5nODA.mp4 146 Surface area of cube and cuboid https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-geometry-topic/x0267d782:cc-6th-nets-of-3d-figures/v/surface-area-of-a-box-using-nets 2023-09-21T21:49:35.177342261Z Surface area of a box using nets Discover the surface area of a cereal box by visualizing a net. Cut and flatten the box to create a 2D shape. Measure the dimensions, calculate the area of each section, and add them up for the total surface area. Fun and practical! video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Surface area of a box using nets Discover the surface area of a cereal box by visualizing a net. Cut and flatten the box to create a 2D shape. Measure the dimensions, calculate the area of each section, and add them up for the total surface area. Fun and practical! https://cdn.kastatic.org/ka-youtube-converted/vl1uMOYFyf4.mp4/vl1uMOYFyf4.mp4 284 Surface area of cube and cuboid https://www.khanacademy.org/math/grade-8-math-tx/x42e41b058fcf4059:measurement-of-three-dimensional-figures/x42e41b058fcf4059:prisms/v/lateral-total-surface-area-of-rectangular-prisms 2024-04-15T13:20:13.302562643Z Lateral & total surface area of rectangular prisms Practice finding the lateral surface area and total surface area of a rectangular prism using the formulas instead of nets. Sal Khan video https://cdn.kastatic.org/ka_thumbnails_cache/eb333256-ecdf-4fd0-9ebf-15fbcf89605e_1280_720_base.png Lateral & total surface area of rectangular prisms Practice finding the lateral surface area and total surface area of a rectangular prism using the formulas instead of nets. https://cdn.kastatic.org/ka-youtube-converted/EeaSMjBKRcA.mp4/EeaSMjBKRcA.mp4 295 Surface area of cube and cuboid https://www.khanacademy.org/math/class-9-tg/x06d55bfa213a79fd:surface-areas-and-volumes/x06d55bfa213a79fd:surface-area-of-cuboid-and-cube/e/b8-surface-area-of-cube-and-cuboid 2025-02-24T09:39:19.049669771Z Surface area of cube and cuboid Surface area of cube and cuboid ashish exercise https://www.khanacademy.org/math/class-9-tg/x06d55bfa213a79fd:surface-areas-and-volumes/x06d55bfa213a79fd:surface-area-of-cuboid-and-cube/e/lateral-surface-area-of-cube-and-cuboid 2025-09-15T19:25:16.756032382Z Lateral Surface area of cube and cuboid In this exercise students learn about Lateral surface areas of cube and cuboid and apply formulas Khan Academy exercise