Example 9 - Chapter 13 Class 9 Surface Areas and Volumes (Term 2)
Last updated at May 29, 2018 by Teachoo
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Surface Area and Volume Formulas Important
Chapter 13 Class 9 Surface Areas and Volumes (Term 2)
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Transcript
Example 9 : The hollow sphere, in which the circus motorcyclist performs his stunts, has a diameter of 7 m. Find the area available to the motorcyclist for riding. Diameter of the sphere = 7 m. Radius = r = 7/2 m = 3.5 m Area available to motorcyclist for riding = Area of sphere = 4πr2 = 4 × 22/7 × 3.5 × 3.5 m2 = 154 m2
