Question

36. If the radius of a tyre is 7 cm, what distance will it travel in 50 rotations ?
। यदि एक टायर की त्रिज्या 7 सेमी, हो तो वह 50 चक्कर में कितनी दूरी तय करेगा ?​

Answer 1

$Given \: radius \:of \:a \:tyre (r) = 7 \:cm$

$Distance \: travelled \: in \: one \: rotation \\= Circumference \:of \:the \:tyre \\= 2 \pi r$

$Distance \: travelled \: in \: 50 \: rotations \\= 50 \times 2\pi r \\= 50 \times 2 \times \frac{22}{7} \times 7 \\= 50 \times 2 \times 22 \\= 2200\:cm$

Therefore.,

$\red { Distance \: travelled \: in \: 50 \: rotations}$

$\green { = 2200 \:cm }$

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