A wheel has a radius of 4 inches and travels as it spins. How far does the wheel travel in one revoution?

Question

I just dont understand the problem i get the standard just not the problem

Answer 1

To calculate the distance travelled in one revolution you need to determine the circumference of the circle.  The formula for the circumference is C=2πr.

 

r, the radius, is given as 4 inches.  Therefore C=2π4 = 8π.  With (pi) π=3.14159, C=25.13272 inches and therefore the distance travelled in one revolution is 25.13272 inches.  I hope this helps.