Classifying Quadrilaterals.notebook
February 24, 2017
Warm Up Determine if the given lines are parallel, perpendicular,
or neither.
1) y = 3x - 1
y = 3x + 3
2) y - 2x = 8
y = -2x + 4
3) 2x + 4y = 8
-2x + y = 10
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HW Review
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Classifying Quadrilaterals.notebook
February 24, 2017
HW Review
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HW Review
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Classifying Quadrilaterals.notebook
February 24, 2017
HW Review
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Classifying Quadrilaterals
What is a quadrilateral?
a polygon that has exactly 4 sides
How do we classify them?
1) by their side properties
2) by their angle properties
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Classifying Quadrilaterals.notebook
February 24, 2017
Classifying Quadrilaterals
Quick Vocabulary
1) congruent: lengths are equal
2) adjacent: beside each other
3) opposite: across from each other
4) supplementary: add to be 180°
5) equilateral: all sides are the same length
6) equiangular: all angles have the same measure
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Classifying Quadrilaterals
Trapezoid:
A quadrilateral with exactly one pair of parallel sides.
side properties - The two parallel sides of the trapezoid are
called the bases
angle properties - The consecutive angles between the bases of
the trapezoid are supplementary
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Classifying Quadrilaterals.notebook
February 24, 2017
Classifying Quadrilaterals
Isosceles Trapezoid:
A trapezoid with two congruent legs.
side properties - the non-parallel sides are congruent
angle properties - Both sets of base angles are congruent
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Classifying Quadrilaterals
Parallelogram:
A quadrilateral with two pairs of parallel sides.
side properties - Opposite sides are congruent
angle properties - Opposite angles are congruent
Consecutive angles are supplementary
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Classifying Quadrilaterals.notebook
February 24, 2017
Classifying Quadrilaterals
Rhombus: An equilateral parallelogram
side properties - all sides are congruent
angle properties - Opposite angles are congruent
Consecutive angles are supplementary
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Classifying Quadrilaterals
Rectangle: An equiangular parallelogram
side properties - opposite sides are congruent
angle properties - all angles are congruent --> 90°
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Classifying Quadrilaterals.notebook
February 24, 2017
Classifying Quadrilaterals
Square: An equilateral equiangular parallelogram
side properties - all sides are congruent
angle properties - all angles are congruent --> 90°
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Classifying Quadrilaterals.notebook
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Classifying Quadrilaterals.notebook
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Classifying Quadrilaterals.notebook
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Practice
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Classifying Quadrilaterals.notebook
February 24, 2017
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