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I need to find the perimeter of this polygon.

 

This isn't perfectly to scale, as I drew it in paint.net.

My program's hint is to turn it into a rectangle by drawing two auxiliary line segments.

 

Now we know what all the sides equal if we include the segments, but I don't understand how this helps me figure out the original two smaller segments and thus the perimeter of the original polygon.

 Apr 29, 2016

Best Answer 

 #2
avatar+425 
+5

Restate the question, as you have said.

 

Finding the perimeter of the polygon is the same as finding the perimeter of a rectangle length 19 and breadth 13.

 

Perimeter = 2(19+13) = 2(32) = 64 

 

Just shift the lines, I learnt that in 4th grade!

 Apr 30, 2016
 #1
avatar
+3

Try labeling the large vertical segment=x

Then the small vertical segment=13 -x

Do the same for the horizontal segment=y

Then the small horizontal segment=19 - y. See if this will help you finding the perimeter and maybe the area.

 Apr 29, 2016
 #2
avatar+425 
+5
Best Answer

Restate the question, as you have said.

 

Finding the perimeter of the polygon is the same as finding the perimeter of a rectangle length 19 and breadth 13.

 

Perimeter = 2(19+13) = 2(32) = 64 

 

Just shift the lines, I learnt that in 4th grade!

MWizard2k04 Apr 30, 2016

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