Posted by Brandi on .
Need help on this one....
Your town is building a circular ice rink with a diameter of 100 feet. Around the ice rink will be a walkway that is 10 feet wide. What is the approximate area of the walkway?
Thanks...

Math 
Steve,
Just subtract the inner circle (the ice) from the whole area (including the walk)
pi(55^2  50^2) 
Math 
Anonymous,
Your town is building a circular ice rink with a diameter of 100 feet. Around the ice rink will be a walkway that is 10 feet wide. What is the approximate area of the walkway?

Math 
emma,
3,500

Math 
chloe,
Three of these methods give the correct area of the figure. Which method does NOT?