anonymous
  • anonymous
I have never used this site and am looking for geometry help for my daughter who is a 10th grader. I was hoping I could get help and then be able to help her. Is this what this group is about
Mathematics
schrodinger
  • schrodinger
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
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anonymous
  • anonymous
yeah. just post ur question and other people will look at it and help her work through the problem
anonymous
  • anonymous
Not sure how to post it. There is a polygon with a circle inscribed in it. The polygon has across top 3 cm then 8 cm and on bottom 4 cm and 1 cm. I need to find the perimeter of the polygon. I would have added all 4 together and came up with 16 but that is incorrect. please help
radar
  • radar
A polygon is a many sided 2 dimensional figure. How many sides make up this polygon?

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anonymous
  • anonymous
4 sides to this polygon
radar
  • radar
If that is the correct dimensions the perimeter would be 16, maybe they want the perimeter of the inscribed circle (circumference)
radar
  • radar
Here is where a picture would be very helpful.
radar
  • radar
Did you have the units on your answer. 16 cm
anonymous
  • anonymous
I have the answer which is 32 cm but am unsure how they got it and need to be able to help explain it. I tried drawing it and attached it to this file
amistre64
  • amistre64
is there a question that goes with the picture? cause if thats the picture and the numbers... then 16 would be my best assumption without anything further to go on
amistre64
  • amistre64
otherwise, they want you to find some measurement for the circle..... is my next best guess
anonymous
  • anonymous
I am attaching a copy of the exact question they gave her on her study guide.
amistre64
  • amistre64
got it....
amistre64
  • amistre64
the measurements are giving you the length of one side of the "section" that is being formed by the poly and the circle... since the circle touches at equal distances from each "corner" the length of each "side " is equal..... let me repost your pic....
amistre64
  • amistre64
like this
1 Attachment
anonymous
  • anonymous
Got it. When I first looked at this I assumed it was the measurements x 2. so basically that is what they are doing.
amistre64
  • amistre64
yep, and the reasoning behind it is similiar to triangles that have 2 equal sides. If you know one side, you know the other side is the same.....
anonymous
  • anonymous
THANK YOU so very much. She has a teacher that will only show them one time and expect them to get the answer. She is over stressed and needs major help. It is almost time for EOI test and she is clueless on geometry.
amistre64
  • amistre64
youre welcome, and not to belittle teachers, but they just arent given enough time to actually teach these concepts appropriately
anonymous
  • anonymous
I agree Teachers work extremly hard. Do you know of any programs that are online that can help her with her geometry to get a grip on these
amistre64
  • amistre64
none that I can think of... im just old and learnt most of this stuff by teaching myself from old textbooks...
anonymous
  • anonymous
Well thanks for all of your help.
radar
  • radar
The attachment cleared it up for me also, Thanks vmann, good luck

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