Properties of //ograms

Death by notes

//ograms

• Opposite sides are congruent• Opposite angles are congruent• Consecutive Angles are Supplementary• Diagonals bisect each other

1 4 7 82 3 5 6 Your Name Here

rhombuses (rhombi)• A parallelogram• All four sides are congruent• Diagonals bisect opposite angles• Diagonals are perpendicular

1 4 7 82 3 5 6 Your Name Here

rectangles

• A parallelogram• four right angles• Diagonals are congruent

1 4 7 82 3 5 6 Your Name Here

Squares• A parallelogram• All four sides are congruent• four right angles• Diagonals bisect opposite angles• Diagonals are perpendicular• Diagonals are congruent

1 4 7 82 3 5 6 Your Name Here

Venned out!

Parallelograms

Squares

Summary• List properties of //ograms• List properties of three sub-//ograms– Rhombus– Rectangle– Square

• Theorems you should start to study (from your book)– Section 3.2: Thm 8.3, 8.4, 8.5, 8.6– P. 533 (all 3 Corollaries)– Section 3.2: Thm 8.11, 8.12, 8.13