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!
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Answer 1

This is the example and the answer is the following:

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 360° as a convex quadrilateral is made of two triangles. This property also holds true for a quadrilateral which is not convex.

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