1. Measurement and Geometry 32 Quadrilaterals 4 cm All sides and the angle in each vertex equal square regular 4 lines of symmetry

2. Measurement and Geometry 32 opposite sides equal, and all angles in its vertices equal rectangle irregular 2 lines of symmetry 4 cm 6 cm 4 cm

3. Measurement and Geometry 32 Quadrilaterals all sides equal and the angles in its opposite vertices equal rhombus irregular 2 lines of symmetry 4 cm

4. Measurement and Geometry 32 2 pairs of adjacent sides are equal and the angles in the 2 vertices where the pairs of adjacent equal sides meet are equal and the angles in the other 2 vertices are not equal kite irregular 1 line of symmetry 4 cm 6 cm

5. Measurement and Geometry 32 4 cm 3 pairs of adjacent sides are equal and the angles in 2 pairs of adjacent vertices are equal trapezium irregular 1 line of symmetry

6. Measurement and Geometry 32 INDEPENDENT INVESTIGATION This shape is a quadrilateral because it has 4 sides and 4 vertices. The lengths of the sides are equal / unequal The sizes of the angles in the vertices are equal / unequal … This quadrilateral is regular / irregular because … This quadrilateral has … lines of symmetry … The name of this special quadrilateral is … because … GUIDED INVESTIGATION What shape is this? How could you describe the length of the sides? How could you describe the size of the angles in the vertices? Is this quadrilateral regular or irregular? Does this special quadrilateral have a name? Where are the lines of symmetry on this quadrilateral? How many lines of symmetry on this quadrilateral? What is a quadrilateral? What is a regular quadrilateral? What is an irregular quadrilateral? How could we check if a quadrilateral is regular? How do we name special quadrilaterals? How could we check if a quadrilateral is special? What is a line of symmetry?