1. October 5 th, 2009 Monday  Bell Ringer  1.9 Notes  Cornell Style  Ti-NSpire Activity  Homework Tonight

2. Start in your notebooks………10/05 BELL RINGER 1.What do you know about the properties of a square? 2.What is a parallelogram? 3.What is a quadrilateral? 4.What does congruent mean?

3. Properties of a square Quadrilateral Parallelogram  4 equal sides and 4 = angles  Each angle is 90° (right <s)  Diagonals are = in length and bisect  4-sided polygons (plane shapes that are formed by line segments that intersect only at the endpoints).  A quadrilateral with 2 pairs of || sides  Opp. sides are || & = in length  Opp. <s are = in measure

4.  Next to, neighboring  A parallelogram with 4 congruent sides Congruent sides Adjacent Rhombus  Sides that are the same length

5. Pg. 42

6. A line segment that looks perpendicular but does not stay perpendicular when moved A point that looks like a midpoint and does not stay in the middle when dragged Ex:

9. BRING UP YOUR CALCULATORS, WRITE A SUMMARY ON THE BOTTOM OF YOUR NOTES AND TURN IN BEFORE YOU LEAVE. Homework tonight can be found online

10. HOMEWORK due tomorrow Pg. 46 #10,11,12

11. Write detailed directions that describe the construction process of an UnMessUpable Square.