Mathematics activity on angle sum property of Triangle. We all know that sum of all angles in a Triangle is 180°.This is important property of triangle, which can be proved mathematically and also visually. In this video this property of triangle is proved using few things like colour paper, gum, scale, protractor and scissors. This activity can be performed by Class 7,8 and 9th students of NCERT.
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Teachers can utilise this video and also setup an small maths lab in their school.