Q3. 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!)
The sum of the measures of the angles of a convex quadrilateral is .A convex quadrilateral is made of two triangles and sum of angles of a triangle is Hence,sum of angles of two triangles is which is also sum of angles of a quadrilateral.
Here, as we can see this quadrilateral has two triangles and sum of angles of these triangles is = sum of all angles of a quadrilateral.