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Understand Parallelogram Properties: Bellringer Activities

Learn to recognize and apply the properties of parallelograms through measuring sides and angles, drawing diagonals, and identifying angle relationships. Understand the characteristics of opposite sides and angles, and how right angles affect parallelograms.

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Understand Parallelogram Properties: Bellringer Activities

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  1. Parallelograms Recognize and apply properties of the sides of parallelograms

  2. Bellringer 1. How many sides does a polygon have if the sum of its interior angles is 2160°? 2. The sum of the interior angles of a hexagon equals _____

  3. Parallelogram • Measure all 4 sides with a ruler • Measure all 4 angles with a protractor • Draw the two diagonals • Measure the length of the two diagonals • Measure the lengths of the diagonal parts • Measure the 4 angles created by the diagonals in the middle and the 8 angles created by the diagonals at the vertices of the parallelogram

  4. Properties: Opposite sides of a parallelogram are ____________

  5. Opposite angles in a parallelogram are ____________________

  6. Consecutive angles in a parallelogram are ______________

  7. If a parallelogram has one right angle, it has ______ right angles

  8. The diagonals of a parallelogram ________________________________

  9. 2b+3 K J R 3a 21 70º 30º L M 45 m<MJK= m<JML= M<JKL= m<KJL= a= b=

  10. Pg 415 (16-21)

  11. Page 415(22-31)

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