anonymous
  • anonymous
can anybody help me
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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mathstudent55
  • mathstudent55
What is the problem?
anonymous
  • anonymous
Assuming that the octagon is regular, what is the area of the shaded region
anonymous
  • anonymous
math student can you come look at my question and help me with it

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anonymous
  • anonymous
Apothem length 18.11
mathstudent55
  • mathstudent55
All youre given is the apothem? Do you know the side length?
anonymous
  • anonymous
15 15
mathstudent55
  • mathstudent55
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mathstudent55
  • mathstudent55
Look at the case of the hexagon I drew above.
anonymous
  • anonymous
freebands - "Assuming that the octagon is regular, what is the area of the shaded region" Ummm....WHAT "shaded region"?? Apparently there's a diagram that accompanies your question which you aren't sharing with us...
mathstudent55
  • mathstudent55
The side of the hexagon is the base of the upper triangle. The apothem is the height of the triangle. The area of the triangle is (1/2)bh = (1/2)sa Since it's a hexagon, you have 6 triangles, so the area is 6 *(1/2)sa = 3sa For an octagon, the area is 4sa (s = side, a = apothem)
mathstudent55
  • mathstudent55
In your case, the area of the entire octagon is 4(18.11 * 15.15) How much of it is shaded?
anonymous
  • anonymous
that is what needs to be found out
mathstudent55
  • mathstudent55
You need to show the picture.

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