To verify that the sum of interior angles of a quadrilateral in 360 ° by paper cutting and pasting. step by step explain.
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Take a piece of rectangular cardboard of suitable size and by using adhesive, paste a white paper on it.
Cut out a quadrilateral from a drawing sheet and name it as ABCD. Now, using adhesive, paste it on cardboard,

Make cut outs of ∠A, ∠B, ∠C & ∠D of Quadrilateral ABCD with the help of tracing paper.

Arrange the four cut out angles at a point O.
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