The radius of a circular wheel is 42 cm. Find the distance travelled by it in :
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Radius =42 cm
Circumference of circle =2×22/7×42 = 264 cm
1 revolution = Circumference of circle
a) 50 revolutions = 50 ×264 = 13,200
b) 200 revolutions = 200 ×264 = 52,800.
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