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Prove that sum of triangles is …

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Prove that sum of triangles is 180 degree.

Posted by Pari Bathla 5 years, 1 month ago

CBSE > Class 09 > Mathematics

2 answers

Shrishti Pandey 5 years, 1 month ago

A+B+C=180°

0Thank You

Adarsh Jain 5 years, 1 month ago

It will be proved using alternate interior angles Draw a line passing through the uppermost point Then u will get 3 angles whose sum will be 180* (Angles on a straight line) Name them 1,2 and 3 Angle 1 will be equal to angle B Angle 3 will be equal to angle C 1+2+3=180 A+B+C=180 Hence proved

5Thank You

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CBSE > Class 09 > Mathematics