Sophia Learning
Sophia: Calculating the Area of a Circle
This video tutorial demonstrates how to find the area of a circle. The lesson includes detailed examples.
Sophia Learning
Sophia: Calculating the Area of a Circle
Determine the area of a circle with the given formula.
Sophia Learning
Sophia: Calculating the Surface Area of Cones
Students watch a video lesson that demonstrates how to find the total surface area of a cone. The tutorial includes detailed examples. [2:49]
Sophia Learning
Sophia: Determining Unknown Values Using the Volume of a Cylinder
This video lesson demonstrates how to work backwards and use the volume of a cylinder to find an unknown measure such as the radius or height. Students can check their understanding with an assessment. [8:24]
Sophia Learning
Sophia: Parts of a Circle
Explore the parts of a circle then test your knowledge with a quiz.
Sophia Learning
Sophia: Slant Height
Slant height is defined by using pyramids and cones in this video lesson. Assessment given to check for understanding. [5:00]
Sophia Learning
Sophia: Slant Height of a Cone
This video lesson demonstrates how to find the slant height of a right cone. Students can check their understanding with an assessment. [6:18]
Sophia Learning
Sophia: Slant Height of a Pyramid
This video lesson demonstrates how to use the Pythagorean Theorem to find the slant height of pyramid.
Sophia Learning
Sophia: Spheres: Volume and Surface Area
This video tutorial demonstrates how to calculate the volume and surface area of a sphere. The lesson includes four videos with detailed examples using the formulas for volume and surface area. [Video tutorial lengths total 17:16]
Sophia Learning
Sophia: Surface Area of a Hemisphere Tutorial
This video lesson shows examples of how to solve for the surface area of a hemisphere as well as checks understanding with an assessment. [4:05]
Sophia Learning
Sophia: Terms Relating to Circles
This lesson will define the terms center, diameter, radius, chord, circumference, and pi. Students can watch a video tutorial and then take an online quiz.
Sophia Learning
Sophia: Volume of a Cone
This video resource demonstrates how to find the volume of a cone. It includes two detailed examples with pictures. [4:00]
Sophia Learning
Sophia: Sector Area of a Circle
This video lesson demonstrates how to find the radius and area of a circle using the area of a sector and a central angle measurement. Students can check their understanding with an assessment.
Sophia Learning
Sophia: Circle Vocab 1
Parts of a circle are defined in this lesson. Take a quiz to assess learning.
Virtual Nerd
Virtual Nerd: What Is Pi?
Take a look at this tutorial to learn about the irrational number pi. [4:41]
Virtual Nerd
Virtual Nerd: What Is a Circle?
Take a look at this tutorial to learn about circles and see the different parts of a circle. [3:54]
Math Antics
Math Antics: Circles: What Is Pi?
Gain a basic understanding of what P is by watching this easy to understand video tutorial. Additional resources are available as part of a paid subscription service. [7:58]
Khan Academy
Khan Academy: Circumference and Area of Circles
Understanding the relationship between the radius, diameter, and circumference of a circle.
Khan Academy
Khan Academy: Introduction to Euclidean Geometry: Language of the Circle
In this video student learn formal definition of a circle including tangent and secant lines, diameters, radii, major and minor arcs.
Art of Problem Solving
Art of Problem Solving: Introduction to Circles
Video tutorial uses examples to introduce circles. [6:39]
Loyola University Chicago
Math Flix: Circle Vocabulary
This QuickTime movie provides an opportunity to learn about the vocabulary of a circle. As you watch and listen to the teacher and student interact it helps clarify the thinking behind applying this concept.
Loyola University Chicago
Math Flix: Illustrating Circle Vocabulary on the Computer
This video explains how to use drawing tools on a computer to draw circles and their parts. As you watch and listen to the teacher and student interact it helps clarify the thinking behind applying this concept. [5:59]
Khan Academy
Khan Academy: Geometry Word Problem: Earth & Moon Radii
Similarity and the Golden ratio join forces again, this time to save the Earth! (Or maybe just finding its radius.)
Sophia Learning
Sophia: Converting Between Diameter and Radius
Given this lesson and either the diameter or radius of a circle, you'll be able to calculate the other measure.