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Yuki888 [10]
1 year ago
9

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

otorcyclist for riding.
​
Mathematics
2 answers:
alexgriva [62]1 year ago
7 0

Diameter of the sphere = 7m

{Radius =\frac{7}{2} = 3.5 m}

Area available to motorcyclist for riding = Area of sphere

{= 4πr^2} \\  \\ {= 4*\frac{22}{7}*3.5*3.5} \\  \\ {= 154}.

The area available to the motorcyclist for riding is 154 m²

Anna11 [10]1 year ago
4 0

\huge\color{red} {\boxed{\tt{A}}} \color{blue} {\boxed{\tt{N}}} \color{hotpink}{\boxed{\tt{S}}} \color{blueviolet}{\boxed{\tt{W}}} \color{fuchsia}{\boxed{\tt{E}}}\color{lavender}{\boxed{\tt{R}}}

\red{ \star} \pmb{Diameter \:  of \:  the  \: sphere = 7 m}

\red{ \star} \pmb{Radius =\frac{7}{2} = 3.5 m}

\pink{\underline{ \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:   \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: \: }}

\sf{Area  \: available \:  to \:  motorcyclist  \: for  \: riding = Area \:  of  \: sphere}

\:  \:  \:  \:  \:  \:  \:  \:  \: \: \:  \:  \:  \:  \sf{= 4πr^2}

\:  \:  \:  \:  \:  \:  \:  \:  \: \: \:  \:  \:  \: \sf{= 4*\frac{22}{7}*3.5*3.5}

\:  \:  \:  \:  \:  \:  \:  \:  \: \: \:  \:  \:  \: \sf{= 154}

<u>The area available to the motorcyclist for riding is 154 m²</u>

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