Math, asked by neha5348, 1 year ago

Prove that sum of the angle of a triangle i 180 degree

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Answered by noman92
1
TRIANGLE. Proof that the sum of the angles in a triangle is 180 degrees. If ABC is a triangle then <)ABC + <)BCA + <)CAB = 180 degrees. Draw line a through points A and B. Draw line b through point C and parallel to line a.
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Answered by kamal1423
1
use prop of parallel lines
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