The Hoberman Sphere is a mechanical toy that expands from 5.9 inches in diameter when it is fully closed

Mathematics For Machine Technology
8th Edition
ISBN:9781337798310
Author:Peterson, John.
Publisher:Peterson, John.
Chapter56: Arcs And Angles Of Circles, Tangent Circles
Section: Chapter Questions
Problem 1A: A pipe has an inside circumference of 82.50 mm and an outside diameter of 28.04 mm. What is the wall...
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The Hoberman Sphere is a mechanical toy that expands from 5.9 inches in diameter when it is fully closed, to 30.1 inches in diameter when fully expanded.† What is the difference in the surface area of a Hoberman sphere from when it is fully closed to when it is fully expanded (in in2)? Round the result to three decimal places.

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