Parallelograms Parallelograms Rectangles Rectangles Rhombi Rhombi Squares Squares Trapezoids...
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Transcript of Parallelograms Parallelograms Rectangles Rectangles Rhombi Rhombi Squares Squares Trapezoids...
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Parallelograms
Rectangles
Rhombi
Squares
Trapezoids
Kites
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A
D
B
C
Definition: Opposite Sides are parallel.
BC ll AD CD llAB
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A
D
B
C
CDAB BCAD
Opposite sides are congruent.
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A
D
B
C
CA
Opposite angles are congruent.
DB
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A
D
B
C
Diagonals bisect each other.
M
DMBM MCAM
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A
D
B
C
180AmDm180DmCm
180CmBm180BmAm
Consecutive Angles are supplementary.
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A
D
B
C
BC ll ADCD llAB
CDAB BCAD
BCDDAB CDAABC
M
DMBM MCAM
180AmDm180DmCm
180CmBm180BmAm
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A
D
B
C
Definition: Parallelogram withFour right angles.
BD AC MDMBMCMA
Diagonals are congruent.
M
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A
D
B
C
1Definition:
Parallelogram withFour congruent sides.
BD AC
Diagonals are perpendicular.
M
Diagonals bisect opposite angles.
2 34
567
8
6521 8743
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A
D
B
C
Definition: It’s a Rectangle RhombusM Rectangle & a Rhombus
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Definition: Quadrilateral with exactly one pair of
parallel sides.
Bases are parallel.
A
D
B
C
CD llAB
ary.supplement are angles Leglegs. are BC&AD
A & D are supp. and B & C are supp.
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Midsegment: Segment that joins the midpoints of the legs
of a trapezoid.
XY is the midsegment.
CD llAB llXY
A
D
B
C
Midsegment is ll to bases and ½ measure of the sum of bases.
X Y
DCAB2
1XY
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Definition: Trapezoid that has
congruent legs.
Legs are congruent.
BC AD
A
D
B
C
A B and D C.
Each pair of Base angles are congruent.
Diagonals are congruent: BDAC
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Definition: Quadrilateral that hasTwo pair of congruent Adjacent sides and no
opposite sides congruent.
BD AC
Diagonals
are .
B
C
D
A
One pair of opposite Angles are congruent.
ABCADC
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B
C
D
A
One diagonal bisects
the other.
Pythagorean Theorem is often used to find
measures.