How many times a wheel of radius 28 cm must rotate to go 352 m? (Take π =
22
7 )
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Answered by
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see, that the perimeter of a circle is 2πr,
therefore, first convert cm to m 28cm=0.28m and in formula, 2×(22÷7)×0.28=1.76 and 352÷1.76=200
therefore answer is 200times.
therefore, first convert cm to m 28cm=0.28m and in formula, 2×(22÷7)×0.28=1.76 and 352÷1.76=200
therefore answer is 200times.
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