MATHguide's Surface Area of Spheres Quizmaster
Review the Lesson | MATHguide homepage Updated March 19th, 2013

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Calculate the following information when the radius (r) = 7 units.
[Use 3.14159 as an approximation for pi and round all answers to the nearest tenth.]

What is the diameter?d = units
What is the circumference?C = units
What is the surface area?T.A. = units2