SOLUTION: a car tire measures 87 inches in circumference. Find the radius , in inches.

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: a car tire measures 87 inches in circumference. Find the radius , in inches.      Log On


   

Question 44005: a car tire measures 87 inches in circumference. Find the radius , in inches.
Answer by adamchapman(301) About Me  (Show Source):
You can put this solution on YOUR website!
The equation linking circumference (C) and radius (R) of a circle is C=4%2Api%2A+R
Rearranging gives:
R=C%2F%284%2Api%29
C=87 inches, so using the above equation
R=6.923 inches
I hope this helps.
P.S. I am trying to start up my own homework help website. I would be extremely grateful if you would send me your feedback on my help to adam.chapman@student.manchester.ac.uk