Question

prove that sum of all angles of Quadrilateral is 360.​

Answer 1

$\star\:\:\:\sf\large\underline\blue{Proof:-}$

In quadrilateral ABCD

Sum of all angles

= Sum of angles of triangle ABC and BCD

We know that sum of all angles of a triangle is 180°.

Therefore,

Sum = 180°+180°=360°, Hence Proved.

Answer 2

Answer:

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