Question

How many times a wheel of radius 28cm must rotate to go 352m? (π=22/7​

Answer 1

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no. of rotations

= total distance / circumference

now,

circumference = 2πr

= 2 × 22/7 × 28cm = 176 cm

distance = 352 m = 35200 cm

now, no. of rotations

= 35200cm / 176 cm = 200

therefore, no. of rotations → 200 rotations.

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