Question

A wheel makes 125 rotations in covering 27500cm. find the radius of the wheel

Answer 1

Answer:

Step-by-step explanation:

no of rotations=distance covered by the wheel/circumference of the wheel

125=27500/circumference of the wheel

circumference of the wheel=27500/125=220cm

we know that circumference=2πr

so 2πr=220

⇒r=220/2π

⇒r=220×7/2×22

⇒r=35cm

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