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Prove angle sum property of a …

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Prove angle sum property of a triangle and exterior angle property of a triangle using paper cutouts

Posted by N27 Swathi 6 years, 2 months ago

CBSE > Class 07 > Mathematics

1 answers

Ameya N K 6 years, 2 months ago

Cut out a triangle. Cut out all it's angles. Draw a 180 degree angle. Paste all the angle cutouts. We can see that all angles fit directly into the 180 degree angle. Therefore, the sum of all angles of a triangle is 180 degree.

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CBSE > Class 07 > Mathematics