Geometry · Area, Surface Area & Volume
Composite Solid
HSG-GMD.A.3
Definition
A three-dimensional figure made of two or more simple solids combined.
Examples
- A solid made of a cylinder and a cone: V = V(cylinder) + V(cone), adding the volumes of the parts.
- A figure made of a rectangular prism topped with a pyramid finds its volume by adding both parts.
Key rule
Find a composite solid's volume by adding the volumes of its simple parts.
Memory hook
Break it into simple solids, then add up the volumes.