The Sum of Interior Angles of a Polygon
Move Points around to come up with a right triangle.
What degree should the 3 angles be?
45, 45, 90
60, 60, 60
90, 90, 180
No matter where you move your points, what is the AREA?
[math]360^\circ[/math]
Plot a midpoint
What is the midpoint?
(0,1)
Now knowing you're midpoint, see how many triangles can be made from midpoint F to points A, B, C, D, and E
How many Triangles are made?
1
5
0
Add angles to the BCF triangle
What are the angles to the BCF triangle?
45, 45, 90
42, 62, 76
40, 70, 70
Close
Check
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Information: The Sum of Interior Angles of a Polygon