The hollow sphere, in which the circus motorcyclist performs his stunts, has diameter of $7 m$ . Find the area available to motorcyclist for riding.

154 m^{2}

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144 m^{2}

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38.5 m^{2}

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176 m^{2}

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Solution

The correct option is A $154 m^{2}$
Surface area of a sphere of radius 'r' $= 4 π r^{2}$
Radius of the sphere $= \frac{7}{2} m$

Hence, the area available to motorcyclist for riding $ = 4 \dfrac {22}{7} \times \dfrac {7}{2} \times \dfrac {7}{2} = 154 {m}^{2} $

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Similar questions

Q. A hollow sphere in which a circus motorcyclist performs his stunts, has an inner diameter of

7 m

. Find the area available to the motorcyclist for riding. (Take

π = \frac{22}{7}

)

The hollow sphere, in which the circus motor cyclist performs his stunts, has a diameter of 7 m. Find the area available to the motor cyclilst for riding.

In a circus, a motorcyclist performs his stunts inside a hollow sphere. The thickness of the sphere is negligible. If the diameter of the hollow sphere is 14 m, then find the area available for the motorcyclist to perform his stunts.
$(u s e π = \frac{22}{7})$

In a circus, a motorcyclist performs his stunts in a hollow sphere.Neglect the thickness of sphere. If the diameter of the hollow sphere is 14 m, then find the area available for the motorcyclist to perform stunts.(Take $π = \frac{22}{7}$ )

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The hollow sphere, in which the circus motorcyclist performs his stunts, has diameter of 7 m. Find the area available to motorcyclist for riding.

The correct option is A 154 m2Surface area of a sphere of radius 'r' =4πr2Radius of the sphere =72mHence, the area available to motorcyclist for riding $ = 4 \dfrac {22}{7} \times \dfrac {7}{2} \times \dfrac {7}{2} = 154 {m}^{2} $

The hollow sphere, in which the circus motorcyclist performs his stunts, has diameter of $7 m$ . Find the area available to motorcyclist for riding.

The correct option is A $154 m^{2}$
Surface area of a sphere of radius 'r' $= 4 π r^{2}$
Radius of the sphere $= \frac{7}{2} m$

Hence, the area available to motorcyclist for riding $ = 4 \dfrac {22}{7} \times \dfrac {7}{2} \times \dfrac {7}{2} = 154 {m}^{2} $