Instructional Video
Sophia Learning

Sophia: Converting Between Diameter and Radius

9th - 10th
Given this lesson and either the diameter or radius of a circle, you'll be able to calculate the other measure.
Instructional Video
Sophia Learning

Sophia: Converting Between Diameter and Radius: Lesson 4

9th - 10th
Given this lesson and either the diameter or radius of a circle, you'll be able to calculate the other measure. It is 4 of 10 in the series titled "Converting Between Diameter and Radius." [2:01]
Instructional Video
Sophia Learning

Sophia: Converting Between Diameter and Radius: Lesson 7

9th - 10th
Given this lesson and either the diameter or radius of a circle, you'll be able to calculate the other measure. It is 7 of 10 in the series titled "Converting Between Diameter and Radius." [1:56]
Instructional Video
Sophia Learning

Sophia: Converting Between Diameter and Radius: Lesson 8

6th - 9th
Given this lesson and either the diameter or radius of a circle, you'll be able to calculate the other measure. It is 8 of 10 in the series titled "Converting Between Diameter and Radius." [2:33]
Instructional Video
Sophia Learning

Sophia: Volume and Cubed Roots

9th - 10th
In this tutorial you will learn how to find the volume of an object as well as how to use the volume equation to find the radius of a sphere using cubed roots. Student watch a video tutorial and then take an online quiz.
Instructional Video
Sophia Learning

Sophia: Central Angle

6th - 8th
This video lesson describes the term central angle.
Instructional Video
Shmoop University

Shmoop: Attributes of Circles

2nd - 8th Standards
This video explains circumference, radius and diameter in an appealing way for students to understand.
Instructional Video
Shmoop University

Shmoop: Area Formulas

9th - 10th Standards
This resource provides a short video about area formulas.