Rhombi

1
Rhombi Squares

• Section 6-5

2

• rhombus a quadrilateral with 4 congruent sides
• Since a rhombus is a parallelogram, it has all
  the properties of a parallelogram.

3
Thms. 8-15, 8-16, 8-17

• The diagonals of a rhombus are perpendicular.
• If the diagonals of a parallelogram are
  perpendicular, then the parallelogram is a
  rhombus.
• Each diagonal of a rhombus bisects a pair of
  opposite angles.

4
rhombus
5

• square a quadrilateral with 4 right angles
  and 4 congruent sides
• A square is a special type of parallelogram
  that is also a rectangle and rhombus. It has all
  the characteristics of a parallelogram, a
  rectangle, and a rhombus.

6
square
7

• parallelograms
• rectangles rhombi
• squares

8
Joke Time

• What is 7Q 3Q?
• Youre welcome!

9

• Why was six afraid of seven?
• Because 7 8 9. (seven ate nine)

10

• Who invented fractions?
• Henry the 1/8 th