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Vladimir [108]
2 years ago
11

#7 I have 30 people in my class including my teacher and class helper please help and explain

Mathematics
2 answers:
kow [346]2 years ago
4 0
You will have 28 kids because your teacher // and class helper.
koban [17]2 years ago
3 0
You will have 28 students that is the answer
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<h3>Given :-</h3>

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<h3>Using Formula:</h3>

\\ \red\bigstar {\underline{\boxed{\color{springgreen}{\textsf{ \textbf{ \: Area \: of \: circle= \:  \: π \:  r \: ² \: }}}}}} \\\\

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\\  \sf \implies \:  \:  \cancel{\frac{ \:  \: 4312 \:  \: }{22}  }\:  =  \: \: r \:  ^{2}  \\

\\  \sf \implies \:  \:   \: 196 \:  \: =  \: \: r \:  ^{2}  \\

\\  \sf \implies \:  \:r \:  ^{2}  =    \: 196 \:  \:   \: \:  \\

\\  \sf \implies \:  \:r \:   =    \sqrt{ \: 196 \:  } \\

\\  \bf \implies \:  \:Radius  \:   =    14 \: cm \\

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Step-by-step explanation:

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