Question

Study the angles and state whether the quadrilateral is convex or concave.​

Answer 1

Answer:

                 Hope it helps.

Step-by-step explanation:

   To be a convex all the four degrees must  be less than 180 degree

                1. convex quadrilateral   ( none of the degrees is greater than 180 )

               2. concave quadrilateral ( ∠b is greater than 180 degree )

                3. concave quadrilateral ( ∠c is greater than 180 degree )

                4. concave quadrilateral ( ∠c is greater than 180 degree )

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