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2. Which statement is true? All parallelograms are rectangles. All squares are parallelograms.

Bell Ringer. 2. Which statement is true? All parallelograms are rectangles. All squares are parallelograms. All quadrilaterals are rectangles. All rectangles are squares. 1. Which statement is true? All quadrilaterals are squares. All squares are rectangles.

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2. Which statement is true? All parallelograms are rectangles. All squares are parallelograms.

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  1. Bell Ringer 2. Which statement is true? All parallelograms are rectangles. All squares are parallelograms. All quadrilaterals are rectangles. All rectangles are squares. 1. Which statement is true? All quadrilaterals are squares. All squares are rectangles. All rectangles are squares. All parallelograms are rectangles.

  2. A B Properties of Parallelogram P D C 1. Both pairs of opposite sides are congruent. 2. Both pairs of opposite angles are congruent. 3. Consecutive angles are supplementary. 4. Diagonals bisect each other but are not congruent P is the midpoint of . Parallelogram

  3. The pieces fit because opposite sides of a parallelogram are congruent. • The new bottom edge is straight because consecutive angles of a parallelogram are supplementary.

  4. The top edge it straight because m<CMN + m<AMN = 180 Segment CN is congruent to NB because N is the midpoint of CB in the starting triangle.

  5. Homework • Page 177-178 #1-3, 5

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