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Activity : Sum of all angles of quadrilateral is 360


·         Draw a Quadrilateral ABCD on colour chart Sheet .
·         Cut such four Quadrilaterals on four different sheets.
·         Mark ÐA as Ð1 ,  ÐB as Ð2 , ÐC as Ð3 and ÐD as Ð4 on each quadrilateral as shown in fig .
·         Arrange all four angles of quadrilateral one from each colour at one point.
·         What you observe ?
·         It forms a complete angle i.e 3600
·         This shows that sum of all angles of quadrilateral is 3600





 



 

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