[tex] \huge \tt {\colorbox {green}{Question}}[/tex]
Tina is cycling at a speed of 10km/h. How long will she take to make a round of a circular field of radius 50m²? (Take π = 3.14)
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Answer:
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Given :-
To Find :-
Solution :-
As we know that,
[tex]\begin{gathered}\\ {\underline{\boxed{\large\leadsto\bf \red{ Circumference_{(Circle) \: = \: \large{ 2\pi r}}}}}} \\ \end{gathered}[/tex]
Where,
So after put the values,
[tex] \begin{gathered}\\ \large\implies\sf{ Circumference_{(Circle) }} = 2 \times 3.14 \times 50 \\ \end{gathered}[/tex]
[tex] \begin{gathered}\\ \large\implies\sf{ Circumference_{(Circle) }} = 100 \times 3.14\\ \end{gathered}[/tex]
[tex] \begin{gathered}\\ \large\implies\sf{ Circumference_{(Circle) }} = 314.00\\ \end{gathered}[/tex]
As we know that it also,
[tex]\begin{gathered}\\ {\underline{\boxed{\large \leadsto\bf { Speed = \frac{Distance}{Time}} \: or \: s = \frac{d}{t} }}} \\ \end{gathered}[/tex]
So, Kindly Put the values,
[tex] \begin{gathered}\\ \large\implies\sf{ 10 = \frac{314}{time} } \\ \end{gathered}[/tex]
[tex] \begin{gathered}\\ \large\implies\sf{ time = \cancel\frac{314}{10} } \\ \end{gathered}[/tex]
[tex] \begin{gathered}\\ \large\implies \underline{\sf{ t ime= 31.4 }} \\ \end{gathered}[/tex]
Hence,
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