anonymous
  • anonymous
A running track in the shape of an oval is shown. The ends of the track form semicircles
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
What is the perimeter of the inside of the track? (π = 3.14)
anonymous
  • anonymous
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anonymous
  • anonymous
Are you looking for perimeter or area?

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anonymous
  • anonymous
perimeter...im really bad at math :b
anonymous
  • anonymous
I am too. I'm not sure how to answer this sorry
anonymous
  • anonymous
Every perfectionist was once a beginner.. :)
anonymous
  • anonymous
its ok :)
anonymous
  • anonymous
Well good luck! :)
anonymous
  • anonymous
That track is made up of Rectangle and two semicircles..
mathstudent55
  • mathstudent55
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anonymous
  • anonymous
If the semicircle is having same radius then two semicircle = 1 cirle..
anonymous
  • anonymous
ok
anonymous
  • anonymous
But you need to find the perimeter of inside track, so go with mathstudent55..
anonymous
  • anonymous
ok then thx
mathstudent55
  • mathstudent55
The track is made up of 2 line segments each 130 m long. Then the track also is made up of 2 semicircles. Two semicircles combine to form one circle. P = 130 m + 130 m + circumference of circle. To find the circumference of the circle use the formula, \(C = \pi d\) You are given d, the diameter as 56 m.
anonymous
  • anonymous
you can notice that inner track diameter is 56m...
mathstudent55
  • mathstudent55
\(P = 130 m + 130 m + \pi \times 56 m\)
anonymous
  • anonymous
so now do i do pie times diameter?
anonymous
  • anonymous
ok thank you so much! @mathstudent55 and u too :) @waterineyes
anonymous
  • anonymous
would my answer be 435.84?
mathstudent55
  • mathstudent55
Yes. pi * diameter is the full circle's circumference. Then you add that to 130 + 130.
mathstudent55
  • mathstudent55
Correct.
anonymous
  • anonymous
ok thank you!
mathstudent55
  • mathstudent55
You're welcome.

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