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Properties of Parallelograms - Algebraic
Contributed by: Potter
Diagonal bisect each other
These properties below are part of this lesson
Properties of Parallelograms
These are not part
of this lesson
Consecutive angles supplementary
Opposite sides equal
Opposite angles equal
Opposite sides parallel
Example: Opposite sides equal.
Answer: Round to whatever you
see in the problem.
Properties of Parallelograms
2x - 4 = 6
     +4  +4
2x = 10
2
x = 5
2
Done!It's reallythat easy.
Solve for the unknownvariable (x).
Answer: Round to whatever you
see in the problem.
Properties of Parallelograms
Solve for the unknownvariable (x).
Answer: Round to whatever you
see in the problem.
Properties of Parallelograms
Solve for the unknownvariable (x).
Answer: Round to whatever you
see in the problem.
Properties of Parallelograms
Solve for the unknownvariable (x).
Answer: Round to whatever you
see in the problem.
Properties of Parallelograms
Solve for the unknownvariable (x).
Answer: Round to whatever you
see in the problem.
Properties of Parallelograms
Example: Opposite angles equal.
Answer: Round to whatever you
see in the problem.
Properties of Parallelograms
5x + 15 = 75
       -15  -15
5x = 60
5
x = 12
5
Done!It's reallythat easy.
Solve for the unknownvariable (x).
Answer: Round to whatever you
see in the problem.
Properties of Parallelograms
Solve for the unknownvariable (x).
Answer: Round to whatever you
see in the problem.
Properties of Parallelograms
Solve for the unknownvariable (x).
Answer: Round to whatever you
see in the problem.
Properties of Parallelograms
Solve for the unknownvariable (x).
Answer: Round to whatever you
see in the problem.
Properties of Parallelograms
Solve for the unknownvariable (x).
Answer: Round to whatever you
see in the problem.
Properties of Parallelograms
Example: Consecutive angles
supplementary.
Answer: Round to whatever you
see in the problem.
Properties of Parallelograms
(11x-10) + 8x = 180         19x - 10 = 180                +10    +10
19x = 190
19
x = 10
19
Done!It's reallythat easy.
Solve for the unknownvariable (x).
Answer: Round to whatever you
see in the problem.
Properties of Parallelograms
Solve for the unknownvariable (x).
Answer: Round to whatever you
see in the problem.
Properties of Parallelograms
Solve for the unknownvariable (x).
Answer: Round to whatever you
see in the problem.
Properties of Parallelograms
Solve for the unknownvariable (x).
Answer: Round to whatever you
see in the problem.
Properties of Parallelograms
Solve for the unknownvariable (x).
Answer: Round to whatever you
see in the problem.
Properties of Parallelograms
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