What is a Convex Quadrilateral?

Define the following terms: Quadrilateral (ii) Convex Quadrilateral

Define the following terms: (i) Quadrilateral (ii) Convex Quadrilateral

What do you mean by a convex quadrilateral? Define a regular polygon.

Explain why a rectangle is a convex quadrilateral.

Explain why a rectangle is a convex quadrilateral.

Explain why a rectangle is a convex quadrilateral.

State whether the statements are true (T) or (F) false. A kite is not a convex quadrilateral.

ABCD is a convex quadrilateral.Join the corresponding trisection points of pairs of opposite sides.Prove that the area of the central quadrilateral,so formed,is (1)/(9) area (BCD)