what is a quadrilateral?. quadrilateral 4 side please teach your partner what quadrilateral means
TRANSCRIPT
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What is a QUADRILATERAL?
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Quadrilateral
4 SIDE
Please teach your partner
what quadrilateral
means.
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Which of these shapes would be called “quadrilaterals”?
square
parallelogram
rhombus
rectangle
Quadrilaterals
trapezoid
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In this slide show you will learn that we identify
quadrilaterals by:
and the length of their sides.
their angles
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Square A square has four sides that are each
the same length. It also has four right angles (perfect
corners).
1
2 3
4
Parallel
Lines?
Please teach your partner why it is a square
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Rhombus A rhombus has four sides that are
each the same length. But it has two acute and two obtuse
angles.
acute
acuteobtuse
obtuse
Parallel
Lines?
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Square and Rhombus
A square and a rhombus both have four sides that are the same length. So, how are they different?
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Square and Rhombus
A rhombus can be thought of as a slanted square.
If we push on the left-hand side of this square, it might end up looking like…
a rhombus.
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The only difference between a square and a
rhombus is…their angles!
Please teach your partner the difference between a square and a rhombus and how they are the same & different using math
vocabulary & names.
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Trapezoid A trapezoid has four sides. They are
all different lengths. Two sides are parallel. The opposing two sides are not
parallel.
Those are parallel.
Those are not parallel.
Please teach your partner what a trapezoid is…
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Rectangle• A rectangle has four
sides – two long sides and two short sides.
• Two sides are parallel.
• The opposing two sides are also parallel.
• It also has four right angles.
Teach your partner the Difference between a rectangle and a rhombus.
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Parallelogram• A parallelogram has four
sides – two long sides and two short sides.
• Two sides are parallel.
• The opposing two sides are also parallel.
• But, it has two acute and two obtuse angles.
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Rectangle and Parallelogram
A parallelogram can be thought of as a slanted rectangle.
If we push on the left-hand side of this rectangle, it might end up looking like…
a parallelogram.
Please teach your partner the difference between a
rectangle and a parallelogram.
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The only difference between a rectangle and
a parallelogram is their angles.
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Use the following table to make comparisons using the
quadrilaterals.
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QuadrilateralsSHAPE SIDES ANGLES PARALLEL
LINES
Square
Rhombus
Trapezoid
Rectangle
Parallelogram
4 same length
4 right angles
2 sets
4 same length
2 acute 2 obtuse 2 sets
Different lengths
Different angles
1 set
2 long, 2 short
4 right angles 2 sets
2 long, 2 short
2 acute 2 obtuse 2 sets
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Write in your journals:
What is the difference between a square and a rhombus?
What is the difference between a rectangle and a parallelogram?
Why is a trapezoid a quadrilateral and not a parallelogram?