The diameter of a wheel is 36cm. How far, to the nearest cm, does it have to travel during each rotation?

Question

The diameter of a wheel is 36cm. How far, to the nearest cm, does it have to travel during each rotation?

Answer 1

The equation to solve this is 2(pi)R.

R is radius which is half the diameter of a circle. You are trying to find the perimeter of the circle.

So substitute the radius into the equation

2 X (pi) X 18 = 113.097cm

Answer 2

Calculate the circumfernce of the circle which has a diameter of 36cm

circumference = 2r(pi)

= 2 times radius times pi

= diameter times pi

= 36 x 3.1415

= 113.09724

so to the nearest cm = 113 cm in one rotation

You will do better asking math questions in math section instead of geography

Answer 3

You just have to find the circumference of the circle. Which is 2 times pi times radius

or pi times diameter

you do the math