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# 6.6 Properties Of Special Parallelograms (2009)

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• 1.
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• 7.
• 8.
• 9. 6.6 Properties of Special Parallelograms Need: -Notes -Conjecture List
• 10. What is a Parallelogram?
• Opposite sides are parallel
• Opposite sides are congruent
• Opposite angles are equal
• Consecutive angles supplementary
• Diagonals bisect eachother
• 11. What is a Rectangle?
• Rectangles are special parallelograms
• Has all the properties of a parallelogram
• All angles are congruent
• Each angle is 90 °
• 12. What is a Rhombus?
• Rectangles are special parallelograms
• Has all the properties of a parallelogram
• Has four congruent sides
• Sometimes called a diamond
• 13. What is a Square?
• Squares are special parallelograms
• Has all the properties of a parallelogram
• A square is a kind of rectangle
• Each angle is 90 °
• A square is also a special rhombus
• All sides are congruent
• 14. What is a Square?
• A square is an equilateral rectangle
• A square is an equiangular rhombus
• 15. Is a square a rectangle? YES!
• Opposite Sides Parallel
• Opposite Sides Equal
• Each angle is 90°
• 16. Is every square a rectangle? YES!
• 17. Is every rectangle a square? NO!
• 18. Is a square a rhombus? YES!
• All sides are equal
• 19. Is every square a rhombus? YES!
• 20. Is every rhombus a square? NO!
• 21. SPECIAL PROPERTIES OF A RHOMBUS Diagonals of a rhombus are perpendicular
• 22. SPECIAL PROPERTIES OF A RHOMBUS Diagonals of a rhombus bisect the angles
• 23. Classwork Worksheet
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