Use these calculator tools to find the surface area, in your choice of units, of a sphere, cone, cube, cylinder, rectangular prism, capsule, ball cap, conical frustum, ellipsoid, or square pyramid. Includes a reference section listing...

[Free Registration/Login Required] In this instructional activity, students build geometric models of graduation caps using stiff paper. The activity requires the application of skills in finding surface area, understanding similarity,...

Practice using the net of a 3D figure to find surface area. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Practice finding the surface area of 3D objects. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.