This math topic focuses on understanding the 2D shapes formed by the cross-sections of various 3D shapes. The shapes examined include cones, cylinders, triangular prisms, rectangular prisms, and rectangular pyramids. Students are presented with images of these 3D shapes and asked to identify the shape of the planar cross-sections. This topic is appropriate for introductory lessons on 3D shapes and their properties in geometry.

Work on practice problems directly here, or download the printable pdf worksheet to practice offline.