In this lesson, we are going to go over surface area and volume of spheres. First we'll go over some special segments within the sphere. A radius, we know, is a segment whose endpoints are on the center and on the sphere. A chord is a segment whose endpoints are on the sphere; it could be anywhere on the sphere. We'll also talk about a diameter and a tangent. A plane can intersect a sphere in a point, a circle, or a great circle. Half of a sphere separated by a great circle is called a hemisphere. You'll learn the formulas for the surface area and volume of a sphere.
*These practice questions are only helpful when you work on them offline on a piece of paper and then use the solution steps function to check your answer.
Surface Area and Volume of Spheres
Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.