The document defines a trapezoid as a quadrilateral with one pair of parallel sides. It identifies the key terms used to describe trapezoids, including bases, legs, base angles, and medians. It provides an example problem involving verifying that a shape is a trapezoid and finding the endpoints of its median. Homework problems from the textbook are assigned.

1. SECTION 8.6 Trapezoids

2. TRAPEZOIDS
 What are the properties of a trapezoid, and how do I apply
them?
 How do I solve problems involving the median of a trapezoid?

3. TRAPEZOID
 Trapezoid: A quadrilateral with exactly one pair of parallel
sides.
 How does this compare to a parallelogram?

4. TERMS
 Bases: The parallel sides
 Legs: Non-parallel sides
 Base Angle: Angle formed by a leg and a base
 Isosceles Trapezoids: A trapezoid with congruent legs

5. TERMS
 Median: Segment that joins the midpoints of the legs.

6. THEOREMS


7. EXAMPLE


8. EXAMPLE


9. EXAMPLE
 ABCD is a quadrilateral with A(5, 1), B( -3, -1), C(-2, 3), D(2, 4)
 Verify that ABCD is a trapezoid
 Is it isosceles?
 What are the endpoints of the median?

10. HOMEWORK
 Page 442
 9 - 19
 22 – 27

11. LESSON PLAN
 Intro
 One more special quadrilateral – trapezoid
 Standards- 8.
 Supplies – slides, whiteboard, handouts,
 Timing - 1 day 1 review day and a quiz
 Essential Questions- slide 2
 Input – slides 3 - 6
 Guided Practice – slides 7 - 9
 Independent Practice – bookwork