Please help i will fan and medal

Question

anonymous · Answer

A running track is in the shape of the figure shown. What is the approximate length of one lap? Use three point one four for pi 


 three hundred yards

 three hundred fifty-seven yards

 five hundred fourteen yards

 eight hundred twenty-eight yards

anonymous · Answer

http://learn.flvs.net/webdav/assessment_images/educator_math1/v9/08_pp_01_251.jpg

yellowlegoguy99 · Answer

Hah, you do FLVS?

yellowlegoguy99 · Answer

...

yellowlegoguy99 · Answer

No, I wasn't saying it in a "mean" way, I take FLVS too.

anonymous · Answer

Oh ok well sorry what is your classes and teachers

yellowlegoguy99 · Answer

Math 3.

yellowlegoguy99 · Answer

Do you have the mega math team? xD

anonymous · Answer

Nope i am in math 1

yellowlegoguy99 · Answer

I recognized that by the link, and I had the mega math team in Math 1.

anonymous · Answer

Oh well i don't know then But can you help me with the question

yellowlegoguy99 · Answer

Sorry, I don't really remember this stuff. xD

anonymous · Answer

Oh ok well do you know anyone that can help

anonymous · Answer

@all pretty much

anonymous · Answer

Oops wrong person i meant to another person

yellowlegoguy99 · Answer

No, sorry.

anonymous · Answer

darn it ok

anonymous · Answer

@mathmale @sammixboo can you help

anonymous · Answer

Alright, you see that dotted line?

anonymous · Answer

That divides the figure to a semi circle. Now, the formula for the length of that semi circle is pi(r) where r is the radius. That's a part of it. I trust you can figure out r? :)