Question

show that the sum of the four interior angle of a quadrilateral is 360.​

Answer 1

Step-by-step explanation:

We have learned that the sum of internal angles of a quadrilateral is 360°, that is, ∠ABC + ∠BCD + ∠CDA + ∠DAB = 360°. let's prove that the sum of all the four angles of a quadrilateral is 360 degrees. We know that the sum of angles in a triangle is 180°.