http://www.ck12.org Chapter 6. Polygons and Quadrilaterals
Summary
This chapter starts by introducing interior and exterior angles in polygons. Then, all special types of quadrilaterals
are explored and classified, both on and off the coordinate plane.
Chapter Keywords
- Polygon Sum Formula
- Equiangular Polygon Formula
- Regular Polygon
- Exterior Angle Sum Theorem
- Parallelogram
- Opposite Sides Theorem
- Opposite Angles Theorem
- Consecutive Angles Theorem
- Parallelogram Diagonals Theorem
- Opposite Sides Theorem Converse
- Opposite Angles Theorem Converse
- Consecutive Angles Theorem Converse
- Parallelogram Diagonals Theorem Converse
- Rectangle Theorem
- Rhombus Theorem
- Square Theorem
- Trapezoid
- Isosceles Trapezoid
- Isosceles Trapezoid Diagonals Theorem
- Midsegment (of a trapezoid)
- Midsegment Theorem
- Kite
- Kite Diagonals Theorem
Chapter Review
Fill in the flow chart according to what you know about the quadrilaterals we have learned in this chapter.
Determine if the following statements are sometimes, always or never true.
- A trapezoid is a kite.