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