How much distance in meters a wheel of radius 21 cm will cover if it rotates 450 times
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circumference of wheel is πr² i.e., 3.14 * 21²=1384.74.
If wheel rotates one time it covers 1384.74 cm
if it rotates for 450 times then it covers a distance of 1384.74 * 450= 623133cms.
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it will take time time, wait !!!
i will edit the answer
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