6.5 Conditions for Rhombuses, Rectangles, and Squares.notebook
February 25, 2014
6.5 Conditions for Rhombuses, Rectangles, and Squares
Objective: Be able to determine whether a parallelogram is a
rhombus or a rectangle.
Theorem 6.16: If the diagonals of a parallelogram are perpendicular then the parallelogram is a rhombus.
Feb 17­11:28 AM
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6.5 Conditions for Rhombuses, Rectangles, and Squares.notebook
February 25, 2014
Theorem 6.17: If one diagonal of a parallelogram bisects a pair of opposite angles, then the parallelogram is a rhombus.
Theorem 6.18: If the diagonals of a parallelogram are congruent, then the parallelogram is a rectangle.
Feb 17­11:29 AM
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6.5 Conditions for Rhombuses, Rectangles, and Squares.notebook
February 25, 2014
Can you conclude that the parallelogram is a rhombus, a rectangle, or a square?
b.)
a.)
7
7
7
90
7
Feb 17­11:29 AM
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6.5 Conditions for Rhombuses, Rectangles, and Squares.notebook
February 25, 2014
Fow what value of x is parallelogram ABCD a square?
Feb 17­11:29 AM
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6.5 Conditions for Rhombuses, Rectangles, and Squares.notebook
February 25, 2014
Describe how you can use two strings to mark the four corners of a rectangle. Feb 17­11:29 AM
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6.5 Conditions for Rhombuses, Rectangles, and Squares.notebook
February 25, 2014
Do Now: This is being turned in for a classwork grade.
Practice 6.5
Feb 17­11:29 AM
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