Cylinders, Cones and Spheres: Calculating the surface area of a sphere
Interactive Video
•
Mathematics
•
9th - 10th Grade
•
Practice Problem
•
Hard
Wayground Content
FREE Resource
The video tutorial explains the concept of a sphere and its surface area. It introduces the formula for the surface area of a sphere, which is 4πR², and discusses its derivation using calculus. The tutorial provides two examples to demonstrate how to calculate the surface area: one with a radius in meters and another with a radius in inches. The importance of understanding units and the concept of square units in area calculations is emphasized.
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2 questions
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1.
OPEN ENDED QUESTION
3 mins • 1 pt
Discuss the significance of the factor of 4 in the surface area formula of a sphere.
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2.
OPEN ENDED QUESTION
3 mins • 1 pt
If the radius of a sphere is 11 inches, what is the surface area?
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