# 10.7: Study Guide

**At Grade**Created by: CK-12

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

**Section: Triangles and Parallelograms**

Perimeter

Area of a Rectangle:

Perimeter of a Rectangle

Perimeter of a Square:

Area of a Square:

Congruent Areas Postulate

Area Addition Postulate

Area of a Parallelogram:

Area of a Triangle: or

**Homework:**

**Section: Trapezoids, Rhombi, and Kites**

Area of a Trapezoid:

Area of a Rhombus:

Area of a Kite:

**Homework:**

**Section: Area of Similar Polygons**

Area of Similar Polygons Theorem

**Homework:**

**Section: Circumference and Arc Length**

Circumference: or

Arc Length

Arc Length Formula: length of or

**Homework:**

**Section: Area of Circles and Sectors**

Area of a Circle:

Sector

Area of a Sector:

Segment of a Circle

**Homework:**