ANSWER it if you are genius…
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Transcript of ANSWER it if you are genius…
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•ANSWER it if you are genius…
• A man and his wife have three sons, and every one of the sons has a sister…
•How many are there in the family?
•A. 6 B. 8 C. 10 D. 12
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Warm upWarm up1. Identify the transformation ∆RST → ∆XYZ.
2. Is XY congruent to RS?
3. What is the length of XY?
Yes
Reflection over the y axis
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Math is brought to you by the number …
•April 18, 2013•Day 65 of 90•90-65 =
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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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To ProveTo Prove
Parallel (use slope formula)•Means opposite sides have the SAME SLOPE
Sides Congruent (use distance formula)•Means their distances are the same
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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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To ProveTo ProveParallel (use slope formula)•Means opposite sides have the SAME SLOPE4 Right Angles (use slope formula)•Means consecutive sides have opposite reciprocal slopes
Opposite Sides Congruent (use distance formula)•Means opposite sides have the same distance
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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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To ProveTo ProveParallel (use slope formula)•Means opposite sides have the SAME SLOPEPerpendicular (use slope formula)•Means diagonals have opposite reciprocal slopes
Sides Congruent (use distance formula)•Means their distances are the same
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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 in this square.
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Square1. EJ =
2. HF =
3. mEJF
4. 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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To ProveTo ProveNot Parallel (use slope formula)•All sides have a different slope
2 Pairs of Consecutive Sides Congruent (use distance formula)•Means two pair of sides have the same distance
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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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To ProveTo ProveBases Parallel (use slope formula)•Means 1 pair of opposite sides have the SAME SLOPE
Legs Congruent (use distance formula)•Means their distances are the sameDiagonals Congruent (use distance formula)•Means their distances are the same
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Classifying Trianglesby Sides
•Equilateral – 3 congruent sides
• Isosceles – 2 congruent sides•Scalene – No sides congruent
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To ProveTo ProveCongruent (use distance formula)•Means their distances are the same; figure out how many sides of the triangle have the same distance
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ClassworkClassworkFind the Missing Point Worksheet
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HomeworkHomeworkQuadrilaterals and
Parallelograms Homework Worksheet