Why is'nt the angle sum property true for a concave quadrilateral even when we can divide it into two triangles

Asked by katariayash1212 | 16th Jan, 2020, 07:06: PM

Expert Answer:

It does not matter whether the quadrilateral is concave or convex, the sum of all the four angles present a quadrilateral is always 360°.

Answered by Arun | 17th Jan, 2020, 10:16: AM