6-4 Special Parallelograms

# 6-4 Special Parallelograms - If the diagonals of a...

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Special Parallelograms Section 6-4

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Each diagonal of a rhombus bisects two angles of the rhombus. The diagonals of a rhombus are perpendicular. The diagonals of a rectangle are congruent.
rhombus

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rectangle
square

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Converses of Theorems (6-12 to 6-14) If one diagonal of a parallelogram bisects two angles of the parallelogram, then the parallelogram is a rhombus.

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Unformatted text preview: If the diagonals of a parallelogram are perpendicular, then the parallelogram is a rhombus. • If the diagonals of a parallelogram are congruent, then the parallelogram is a rectangle. parallelograms rectangles rhombi squares Joke Time What is 7Q + 3Q? You’re welcome! Why was six afraid of seven? Because 7 8 9. (seven ate nine) Who invented fractions? Henry the 1/8 th...
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## This note was uploaded on 12/01/2011 for the course MATH 105 taught by Professor Towns during the Fall '10 term at BYU.

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6-4 Special Parallelograms - If the diagonals of a...

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