1. Polygons with four sides
Quadrilaterals
Polygons with four sides

2. Bell Ringer Explain the Statement “if two adjacent angles
form linear pair, they are supplementary”

3. Types of Quadrilaterals
Square: Quadrilateral with four equal sides and four right angles (90 degrees)
Indicates equal sides
Box indicates 900 angle

4. Types of Quadrilaterals
Rectangle: Quadrilateral with two pairs of equal sides and four right angles (90 degrees)
Indicates equal sides
Box indicates 900 angle

5. Types of Quadrilaterals
Parallelogram: Quadrilateral with opposite sides that are parallel and of equal length and opposite angles are equal
Indicates equal sides

6. Types of Quadrilaterals
Rhombus: Parallelogram with four equal sides and opposite angles equal
Indicates equal sides

7. Types of Quadrilaterals
Trapezoid: Quadrilateral with one pair of parallel sides
Parallel sides never meet.

8. Types of Quadrilaterals
Irregular shapes: Quadrilateral with no equal sides and no equal angles

9. Name the Quadrilaterals1 3 2
irregular
rhombus
rectangle 5 6 4
parallelogram
trapezoid
square

10. Interior Angles
Interior angles: An interior angle (or internal angle) is an angle formed by two sides of a simple polygon that share an endpoint
Interior angles of a quadrilateral always equal 360 degrees

12. Quadrilateral ABCD has at least one pair of opposite sides congruent
Quadrilateral ABCD has at least one pair of opposite sides congruent. What kinds of quadrilaterals meet this condition?