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6.4 Rhombuses, Rectangles, and Squares
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March 17, 2016
Warm UpHow can we prove a quadrilateral is a parallelogram?
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6.3 Homework and Questions
On the top of your paper (by your name) rate yourself for this section:
4 I can summarize the concepts and explain it to others
3 I can apply the concept to answer questions correctly
2 I can apply the concepts but with some mistakes
1 I need help and know how to apply the concept
0 I can't apply the concept, even with help
*Rating of 02 is a warning signal to me that you need help*
6.4 Rhombuses, Rectangles, and SquaresGoals: • Use properties of sides and angles of rhombuses,
rectangles, and squares.• Use properties of diagonals of rhombuses, rectangles, and squares.
EQ:What's the difference between a rhombus, rectangle, and square?
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6.4 Rhombuses, Rectangles, and Squares
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March 17, 2016
Vocabulary
Rhombus:
Rectangle:
Square:
Example 1: Describing a Special Parallelogram Example 2: Using Properties of Special ParallelogramsABCD is a rhombus. What else do you know about ABCD?
• ABCD has 4 congruent ______
• Its opposite sides are _______
• Its opposite angles are _______
• Its diagonals _________________
• Its consecutive angles are _______________
Example 3: Using Properties of a RectangleIn the diagram, EFGH is a rectangle. What is the value of y?
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6.4 Rhombuses, Rectangles, and Squares
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March 17, 2016
Try ItDecide whether the statement is always, sometimes, or never true.
Example 4: Checking a SquareTree House You are building a tree house.
Try ItDecide whether the statement is true or false. Explain.
4. The diagonals of a rhombus are always congruent.
5. The diagonals of a square are never perpendicular.
6. Each diagonal of a rectangle sometimes bisects a pair of opposite angles.
6.4 Homeworkp.351 #1238even
Book Cover Due Mon.
*Note: Ch.6 Test will be next Thursday
SummaryEQ: What's the difference between a
rhombus, rectangle, and square?
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