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The hollow sphere, in which the circus...

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.

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Inner diameter of the hollow sphere, `2r=7m`
Available area to the motorcyclist for riding = Inner surface area of the sphere
`4pir^2=pi(2r)^2=22/7xx7^2`
Available area to the motorcyclist for riding `=154sq.m`
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RD SHARMA-SURFACE AREA AND VOLUME OF A SPHERE -All Questions
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