Classifying and Comparing Quadrilaterals

This lesson covers the classification and comparison of quadrilaterals based on their properties. It begins with an introduction to quadrilaterals, highlighting their common attributes such as having four sides and angles. The lesson then delves into specific types like parallelograms, which have two pairs of parallel sides, and trapezoids, which have at least one pair. Differences between these types are discussed, including side and angle congruency. The lesson also addresses quadrilaterals with no parallel sides, such as kites, which have unique properties like congruent adjacent sides. The lesson concludes with a summary of the classification process.

Which of the following is a characteristic of all quadrilaterals?

• They have no angles.

• They have one pair of parallel sides.

• They have four angles.

• They have three sides.

What is a defining feature of a parallelogram?

• At least one pair of parallel sides.

• All sides are equal.

• Two pairs of parallel sides.

• No parallel sides.

How do trapezoids differ from parallelograms?

• Trapezoids have no parallel sides.

• Trapezoids have all sides congruent.

• Trapezoids have two pairs of parallel sides.

• Trapezoids have at least one pair of parallel sides.

Which statement is true about kites?

• Kites have all sides equal.

• Kites have no congruent sides.

• Kites have two pairs of parallel sides.

• Kites have congruent adjacent sides.

What makes kites unique among quadrilaterals?

• They have congruent adjacent sides.

• They have no angles.

• They have congruent opposite angles.

• They have parallel sides.