Question

3. What is the sum of the measures of the angles of a convex quadrilateral? Will this property
hold if the quadrilateral is not convex? (Make a non-convex quadrilateral and try)
​

Answer 1

Answer:

The sum of the measures of the angles of a convex quadrilateral is 360° as a convex quadrilateral is made of two triangles. This property also holds true for a quadrilateral which is not convex. This is because any quadrilateral can be divided into two triangles.