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# 6.7: Study Guide

Difficulty Level: At Grade Created by: CK-12

Keywords: Define, write theorems, and/or draw a diagram for each word below.

1st\begin{align*}1^{st}\end{align*} Section: Angles in Polygons

Polygon Sum Formula

Equiangular Polygon Formula

Regular Polygon

Exterior Angle Sum Theorem

Homework:

2nd\begin{align*}2^{nd}\end{align*} Section: Properties of Parallelograms

Parallelogram

Opposite Sides Theorem

Opposite Angles Theorem

Consecutive Angles Theorem

Parallelogram Diagonals Theorem

Homework:

3rd\begin{align*}3^{rd}\end{align*} Section: Proving Quadrilaterals are Parallelograms

Opposite Sides Theorem Converse

Opposite Angles Theorem Converse

Consecutive Angles Theorem Converse

Parallelogram Diagonals Theorem Converse

Theorem 6-10

Homework:

4th\begin{align*}4^{th}\end{align*} Section: Rectangles, Rhombuses, and Squares

Rectangle Theorem

Rhombus Theorem

Square Theorem

Theorem 6-14

Theorem 6-15

Theorem 6-16

Homework:

5th\begin{align*}5^{th}\end{align*} Section: Trapezoids and Kites

Trapezoid

Isosceles Trapezoid

Theorem 6-17

Theorem 6-17 Converse

Isosceles Trapezoid Diagonals Theorem

Midsegment (of a trapezoid)

Midsegment Theorem

Kite

Theorem 6-21

Theorem 6-22

Kite Diagonals Theorem

Homework:

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