Using only the fact that the sum of the interior angles of a triangle is 180, how would I show that a = a* and b = b*?
The Attempt at a Solution
In my diagram, there are 2 triangles: ABC and A*B*C
a + b + c = 180 and a* + b* + c =180 (a,b,a*,b,c are angles)
since both equations equal to 180, I equate them to each other and subtract angle c from both sides to get:
a + b = a* + b*.
I'm stuck here. I proved that their sum is the same, but not the angles. Do you have any suggestions?
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