Question

54. If the diameter of a cycle wheel is 3 ft, then
the number of complete rotations that the
wheel will make in covering a distance of 30 ft is
​

Answer 1

Question :

If the diameter of a cycle wheel is 3 ft, then

the number of complete rotations that the

wheel will make in covering a distance of 30 ft is

To find:

Nber of times the wheel rotates in covering a distance of 30ft

Step-by-step explanation:

• Given: diameter = 3ft
• so radius = diameter/2 = 3/2 = 1.5ft

we know,

$circumference = 2\pi r \\ = 2 \times \frac{22}{7} \times 1.5 \\ = 9.42$

so number of times the wheel has rotated

$= \frac{30}{9.42} \\ = 3.12(approx.)</p><p>$

so the number of rotations completed is 3.12