Identify the shapes of two-dimensional cross-sections of prisms, pyramids, cylinders, cones, and spheres and identify three-dimensional objects generated by rotations of two-dimensional shapes

How Do You Find the Volume of a Sphere?

Want to find the volume of a sphere? If you know the radius of the sphere, you can simply plug that value into the formula for the volume of a sphere and simplify! This tutorial shows you how!
How Do You Find the Surface Area of a Sphere?

Trying to find the surface area of a sphere? Already know the radius? Then plug that value into the formula for the surface area of a sphere and solve to get the answer! This tutorial shows you how!
What is a Solid?

Understanding solids is a building block for finding their lateral area, surface area, and volume. In this tutorial, you'll see examples of solids and learn their different parts. Take a look!