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 solid figures https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-geometry-topic/cc-6th-surface-area/e/surface-areas 2026-03-10T04:30:37.966653692Z Surface area Practice finding the surface area of 3D objects. Rhonda Hughes exercise https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-geometry-topic/x0267d782:cc-6th-nets-of-3d-figures/v/finding-surface-area-using-net 2022-11-16T04:22:43.7414897Z Surface area using a net: triangular prism Here are the steps to compute the surface area of a triangular prism: 1. Find the areas of each of the three rectangular faces, using the formula for the area of a rectangle: length x width. 2. Next, find the area of the two triangular faces, using the formula for the area of a triangle: 1/2 base x height. 3. Add the areas of all five faces together, and you're done! video https://cdn.kastatic.org/googleusercontent/OfzYz0f4VOC7gQTFba9xbZgDzBPf9R5DQMzRZahvQ67bcRMTDOaupWxFYP4y2CvBZBAM1CrVL0rhHpks0YOcO0PD Surface area using a net: triangular prism Here are the steps to compute the surface area of a triangular prism: 1. Find the areas of each of the three rectangular faces, using the formula for the area of a rectangle: length x width. 2. Next, find the area of the two triangular faces, using the formula for the area of a triangle: 1/2 base x height. 3. Add the areas of all five faces together, and you're done! https://cdn.kastatic.org/ka-youtube-converted/mtMNvnm71Z0.mp4/mtMNvnm71Z0.mp4 214 Surface area of solid figures https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-geometry-topic/x0267d782:cc-6th-nets-of-3d-figures/v/surface-area-from-net 2021-06-30T20:49:33Z Surface area using a net: rectangular prism A polyhedron is a three-dimensional shape that has flat surfaces and straight edges.  Learn whether or not a certain net could be folded up into a certain rectangular prism. Sal Khan video https://cdn.kastatic.org/googleusercontent/Hl02dFXar1r1dZF3DWyCFfVpHs57HDWZq1AjmVj--nLeZSzmz8xR2oq09l5SgJqt-DpOhWlB8jFgsU8JxVEhPQ9z Surface area using a net: rectangular prism A polyhedron is a three-dimensional shape that has flat surfaces and straight edges.  Learn whether or not a certain net could be folded up into a certain rectangular prism. https://cdn.kastatic.org/ka-youtube-converted/m1ZTnl4CNQg.mp4/m1ZTnl4CNQg.mp4 259 Surface area of solid figures https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-geometry-topic/x0267d782:cc-6th-nets-of-3d-figures/e/surface-area 2026-04-07T23:55:07.30621384Z Surface area using nets Practice using the net of a 3D figure to find surface area. Matthew Evans exercise https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-geometry-topic/cc-6th-surface-area/v/surface-area-word-problem-example 2023-09-21T21:49:35.177342261Z Surface area word problem example Akira won a science fair and got a golden pyramid trophy. We want to find out how much gold foil was used. The trophy has a square base and four triangular faces. By calculating the area of these shapes, we can find the total surface area covered by the gold foil. video https://cdn.kastatic.org/ka_thumbnails_cache/f197e8ba-6c6d-454e-abb0-4e86e4a315d6_1280_720_base.png Surface area word problem example Akira won a science fair and got a golden pyramid trophy. We want to find out how much gold foil was used. The trophy has a square base and four triangular faces. By calculating the area of these shapes, we can find the total surface area covered by the gold foil. https://cdn.kastatic.org/ka-youtube-converted/ODNCH3gSKdA.mp4/ODNCH3gSKdA.mp4 275 Surface area of solid figures https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-geometry-topic/cc-6th-surface-area/e/surface-area-word-problems 2026-03-31T08:52:19.062243676Z Surface area word problems Solve word problems that involve surface area of pyramids and prisms. Lindsay exercise https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-geometry-topic/cc-6th-surface-area/a/3d-figures-faq 2024-05-09T14:45:00.769995577Z 3D figures FAQ Frequently asked questions about 3D figures article https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-geometry-topic/cc-6th-surface-area/a/surface-area-review 2026-03-31T08:44:48.259988263Z Surface area review Review surface area and try some practice problems. article https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-geometry-topic/cc-6th-surface-area/a/surface-area-versus-volume 2024-01-26T15:42:31.425218268Z Surface area versus volume A 3D figure has both surface area and volume measurements, but we use them for different purposes. Learn the difference and when to use each. article