8.2Properties of Parallelograms
Quick Answer
A parallelogram has opposite sides parallel and congruent, opposite angles congruent, consecutive angles supplementary, and diagonals that bisect each other.
Essential Question
How do the four key properties of a parallelogram all follow from the definition that opposite sides are parallel?
Learning Goals
- 1State the four properties of a parallelogram.
- 2Apply properties to find missing side lengths and angle measures.
- 3Use the diagonal bisection property.
- 4Solve algebraic problems using parallelogram properties.
Key Vocabulary
Parallelogram
A quadrilateral with both pairs of opposite sides parallel.
Diagonal bisection
In a parallelogram, the diagonals bisect each other (each diagonal cuts the other into two equal segments).
Full lesson content coming soon
Worked examples, guided practice problems, a workbook, quiz, and downloadable PDF resources will be added to this lesson in Phase 2. The learning goals and vocabulary above reflect the complete lesson scope.