SOLUTION: Solve the problem. Use 3.14 for π. A figure skater must trace a figure eight on the ice that consists of two perfect circles, each with a radius 11 ft. of How far does the s

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: Solve the problem. Use 3.14 for π. A figure skater must trace a figure eight on the ice that consists of two perfect circles, each with a radius 11 ft. of How far does the s      Log On


   

Question 116032: Solve the problem. Use 3.14 for π.
A figure skater must trace a figure eight on the ice that consists of two perfect circles, each with a radius 11 ft. of How far does the skater go one time around the figure eight?
Answer by wgunther(43) About Me  (Show Source):
You can put this solution on YOUR website!
The circumfrence is the distance around the circle. By definition, pi is the ratio of the circumfrence to the diameter. the diameter is 2 times the radius. So, C=2(pi)(r). That's one of the circles. The other circle is same as the first. Multiple it by 2. so the answer is 4(pi)(r)