Submitted by suraj123 • September 14, 2012
www.tutorcircle.com

According to triangle sum theorem sum of all the angles in a triangle is equals to 180 degrees. We can solve many mathematical problems using this sum theorem. Suppose we have a triangle ABC:

According to this theorem angles of triangle can be put into a relation as:

Angle (ABC) + Angle (BAC) + Angle (ACB) = 1800.

Proof for theorem can be given as follows:

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- Tags: triangle sum theorem