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6-4:Properties of Special Parallelograms

6-4:Properties of Special Parallelograms. CP Geometry Mr. Gallo. Types of Special Parallelograms. Rhombus A parallelogram with 4 congruent sides Rectangle Parallelogram with 4 right angles Square A parallelogram with 4 congruent sides and 4 congruent angles. Theorem 6-13.

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6-4:Properties of Special Parallelograms

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  1. 6-4:Properties of Special Parallelograms CP Geometry Mr. Gallo

  2. Types of Special Parallelograms • Rhombus • A parallelogram with 4 congruent sides • Rectangle • Parallelogram with 4 right angles • Square • A parallelogram with 4 congruent sides and 4 congruent angles

  3. Theorem 6-13 then its diagonals If a parallelogram is a rhombus, ________________ __________________. are perpendicular Remember all the properties of parallelograms are also true for the special parallelograms

  4. Theorem 6-14 then each diagonal If a parallelogram is a rhombus, __________________ _____________________________. bisects a pair of opposite angles Then the following angles are congruent:

  5. Properties of Rhombi Name the diagonals: _______ and _______ Q 5 in P R S

  6. Theorem 6-15 then its diagonals If a parallelogram is a rectangle, _________________ ______________. are congruent The diagonals of rectangle ABCD are: ____ & ____ Complete Got It? #3 p. 378 a. 43 b. Isosceles; diagonals of a rectangle are and bisect each other.

  7. Homework: p.379 #10-38 even, 50-54 even, 55-58

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