What is a Sphere?
The teacher diagrams and explains the different terms of what comprises a sphere. Follow along and learn about the: radius, diameter, great circle, center, and hemisphere.
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What is the Formula for the Volume of a Sphere?
The formula of a sphere is related to the formula of a cylinder? How? Oh, radius and pi. Watch this video and observe how the instructor illustrates just how these two formulas are connected. Then plug in the known values and solve this...
5 mins 6th - 10th Math
How Do You Find the Surface Area of a Sphere?
What do a basketball, a bowling ball, and a ping pong ball all have in common? They are spheres. So how do you measure the surface area of a sphere? Yes, there is a formula and all you have to do is know one measurement of the sphere to...
3 mins 6th - 12th Math