Geometry - 1st & 3rd blocks

Today in class we reviewed the homework on properties of parallelograms.  We practiced proofs with parallelograms.  
Properties of ALL parallelograms (rectangles, rhombi and squares are all parallelograms):
1) opposite sides are congruent           (side1 = side2)
2)  opposite angles are congruent     (angle1 = angle2)
3) consecutive angles are supplementary     (angle1 + angle2 = 180)
4)  diagonals bisect each other  (diagonals are split into 2 equal parts)

Additional property for rectangles & squares (all squares are rectangles):
1)  diagonals are congruent

Additonal properties for rhombi & squares (all squares are rhombi):
1)  diagonals are perpendicular
2)  diagonals bisect the angles

Homework:  Study for your quiz tomorrow.  Complete the quiz review sheet (that is separate from your packet).  Practice and review proofs.

​Copies of today's notes: