How many times a wheel of radius 28 cm must rotate to 352 m? {Take pie=22/7}


Given:

The radius of a wheel is $28\ cm$.

To do:

We have to find the number of times the wheel must rotate to cover 352 m.

Solution:

Circumference of a circle of radius $r=2 \pi r$

Distance covered in 1 revolution $=2 \times \frac{22}{7} \times 28$

$=2 \times 22 \times 4$

$= 44 \times 4$

$= 176\ m$

Number of revolutions taken by the wheel to cover 352 m $=\frac{352}{176}$

$=2$

Hence, the wheel must rotate 2 times to cover 352 m. 

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Updated on: 10-Oct-2022

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