Kinds of Quadrilaterals

In a quadrilateral PQRS, /_P=70^(@),/_Q=90^(@),/_R=55^(@) . Find the measure of /_S . What kind of quadrilateral is it convex or concave?

Have students take each of the quadrilateral named below, join, in order, the mid points of the sides and describe the special kind of quadrilaterals they get each time: Rhombus

Have students take each of the quadrilateral named below, join, in order, the mid points of the sides and describe the special kind of quadrilaterals they get each time: Rectangle.

Properites of Quadrilaterals

Construction Of Quadrilaterals

Construction Of Quadrilaterals

Construction Of Quadrilateral

Construction Of Quadrilateral

What Is A Quadrilaterals?|Types Of Quadrilaterals|Question

If the opposite sides of a quadrilateral are equal, prove that the quadrilateral is a parallelogram.