Question

16. How many times a wheel of radius 70 cm rotate to go 462 m.​

Answer 1

Step-by-step explanation:

70cm = 0.7m

So, it's circumference=

$2\pi r$

= (2 × 22/7 × 0.7) = 4.4m

The wheel covers 4.4m to rotate 1 time

Therefore, the wheel covers 462m to rotate (1/4.4 × 462) = (4620/44) = 105.

So, the wheel rotates 105 times.

Hope this helps!