Question

prove that the sum of the angles of quadrilateral is 360

Answer 1

Answer:

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Answer 2

Answer:

Step-by-step explanation:

If we draw one diagonal to quadrilateral we will get two triangles i.e. △ABC

and △ACD and we know that sum of the angles of a triangle is 180o

Sum of angles of quadrilateral ABCD=sum of angles of △ABC + sum of the angles △ACD

= 180o + 180o

= 360o

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