Question

If the radius of a tyre is 7 cm what distance will it travels in 50 rotation

Answer 1

Answer:

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Answer 2

$Radius \: of \:the \:tyre (r) = 7 \:cm$

$Distance \: travelled \: by \: 1 \: rotation \\= Circumference \:of \:the \:tyre \\= 2\pi r$

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

Therefore.,

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

$\green { = 2200 \:cm}$

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