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Types of Types of QuadrilateralsQuadrilaterals
(4-sided (4-sided figures)figures)
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A four sided figure with both pairs of opposite sides parallel
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Some Special Properties of
Parallelograms• Opposite sides are congruent• Diagonals bisect each other• Both pairs of opposite sides are
parallel
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Solve for x.
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Solve for x.
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A parallelogram with 4 right angles
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Some Special Properties of Rectangles
• All the properties of a parallelogram
• Diagonals are congruent• 4 right angles
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A parallelogram with 4 congruent sides
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Some Special Properties of Rhombus
• All the properties of a parallelogram
• Diagonals are perpendicular• 4 congruent sides
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Solve for x in this rhombus.
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Z
Rhombus.
1. VY =
2. mZVY
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A parallelogram with 4 congruent sides & 4 right angles
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Some Special Properties of Square
•All the properties of a parallelogram, rectangle, & rhombus
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Solve for x and y in this square.
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Square1. EJ =
2. HF =
4. mEJF
5. mHGF
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A quadrilateral with 2 pairs of consecutive congruent sides, but opposites sides are NOT parallel
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Some Special Properties of Kite
•Diagonals are perpendicular
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A quadrilateral with 1 pair of parallel sides called bases
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Have only one pair of opposite sides that are parallel.
leg leg
base
base
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A quadrilateral with 1 pair of parallel sides called bases and non-parallel sides are congruent (legs)
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Some Special Properties of Isosceles
Trapezoid•Diagonals are congruent
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Classifying Trianglesby Sides
•Equilateral – 3 congruent sides
• Isosceles – 2 congruent sides•Scalene – No sides congruent