Question

A wheel of radius $\frac{4}{\pi }$ cm touches a flat surface. What is the distance covered by the wheel in one complete rotation?

• A. 4 cm
• B. 8 cm
• C. 2 cm
• D. 6 cm

Answer 1

The correct option is B 8 cm


Given, $r=\frac{4}{\pi }cm$
Distance covered by the wheel in one complete rotation = Circumference = $2\pi r=2\times \pi \times \frac{4}{\pi }=8cm$