Question

a bicycle wheel has a diameter of 65cm what is the length of 1000 revolutions of the wheel in metres​

Answer 1

Answer: 2041 meters

A bicycle wheel is a circular object.

The circumference of a circle is 2π(radius)

Here given:

• diameter: 65 cm

• radius = diameter/2 = 65/2 = 32.5 cm

Hence find the length for each revolution:

• 2π(32.5) = 204.1 cm per revolution

Then for 1000 revolutions:

• 204.1 × 1000 = 204100 cm ≈ 2041 meter