Question

prove the angle sum property of a quadrilateral

Answer 1

Answer- Angle sum property of a quadrilateral means that the sum of all the four angles of a quadrilateral (four-sided figure) is equal to 360°.
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Answer 2

Answer:

Property:

The sum of the interior angles of a quadrilateral add up to 360⁰

Proof:

Draw a diagonal of the quard you will get 2 triangles

By angle sum property of triangle

Angles of 1st triangle = 180⁰

Angle of 2nd triangle = 180⁰

Sum of the angles of 2 triangle = 360⁰