Warm-up

Two silk worms had a race…

they ended up in a tie!

No matter how much you push the envelope,

it’s still stationary!

Agenda

6-1 Quadrilaterals 6-2 Parallelograms Homework

Quadrilateral

Parallelogram

Rectangle

Square

Rhombus

Trapezoid

IsoscelesTrapezoid

Chapter 6 – Exploring Quadrilaterals

Definition – four-sided, closed polygons

Quadrilaterals

Total measure of interior angles is 360.

Parallelograms

Parallelogram Theorems

Theorem 6-1 Opposite sides of a parallelogram are

congruent. Theorem 6-2

Opposite angles of a parallelogram are congruent.

Theorem 6-3 Consecutive angles in a parallelogram are

supplementary.

One more theorem

Theorem 6-4 The diagonals of a parallelogram bisect each other.

All polygons with more than 3 sides have diagonals.

Example 1

Example 2

Tests for Parallelograms

Tests for Parallelograms

Tests for Parallelograms

Tests for Parallelograms

Tests for Parallelograms

Class work

Page 295 #17-35

Homework Page 295 #17-26

Homework #27

Homework #28

Homework #29

Homework #30-32

Homework #33

Homework #34

Homework #35

Answers Ahead

6-1 Study Guide

Homework

6-1 Study Guide and Practice 6-2 Study Guide and Practice