Question

Radius of the wheel shown below is 7cm.
How many rotations are needed
for this wheel ti cover 440 cm?​

Answer 1

Radius of wheel = 7cm

Circumference of wheel = 2πr

$= 2 \times \frac{22}{7} \times 7cm \\ = 2 \times 22cm \\ = 44cm$

Rotations needed to cover 440m distance

$= \frac{440cm}{circumfrence} \\ = \frac{440cm}{44cm} \\ = 10$

Answer= 10 Rounds

Jai Shree Ram