What types of angles do you see in this figure?
Where do you see perpendicular line segments? What makes them perpendicular?
The left and top sides, the top and right sides, the right and bottom sides, and the bottom and left sides are perpendicular. They meet at right angles.
Where do you see parallel line segments? What makes them parallel?
The vertical sides are parallel to each other. The horizontal sides are parallel to each other. They would never touch if you continued them forever.
What type of shape is it? What attributes define it?
Rectangle. Possible response: It is a quadrilateral with 4 right angles, 2 pairs of parallel sides, and opposite sides of equal length.
Draw a square. What attributes make it a square?
Students draw any square. Possible answer: It is a quadrilateral with 4 right angles, 4 sides of equal length, and 2 pairs of parallel sides.
Draw a rhombus. What attributes make it a rhombus?
Students draw any rhombus. It is a quadrilateral with 4 sides of equal length.
Draw a quadrilateral that is not a square, rhombus, or rectangle. Explain why it is still a quadrilateral even though it does not fit those categories.
Answers vary; shapes should be 4-sided polygons that do not fit the definitions for square, rhombus, or rectangle. All polygons with 4 sides are considered quadrilaterals.
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