## TEKS.7.9B: Determine the circumference and area of circles.

There are 97 resources.
Title Description Thumbnail Image Curriculum Topics

## VIDEO: Geometry Applications: Circles

### VIDEO: Geometry Applications: Circles In this program we explore the properties of circles. We do this in the context of two real-world applications.

Applications of Circles

## VIDEO: Geometry Applications: Circles, 1

### VIDEO: Geometry Applications: Circles, Segment 1: The Basics of Circles. We visit Chaco Canyon in New Mexico to explore the circular kivas and in the process discover how circular buildings have been used to study the heavens.

Applications of Circles

## VIDEO: Geometry Applications: Circles, 2

### VIDEO: Geometry Applications: Circles, Segment 2: Circles and Arcs. The Roman Coliseum is a large elliptical structure. Yet, the Romans likely used circular arcs to build it.

Applications of Circles and Definition of a Circle

## VIDEO: Geometry Applications: Circles, 3

### VIDEO: Geometry Applications: Circles, Segment 3: Chords and Inscribed Angles The Roman Pantheon is a domed structure that shows a keen awareness of the position of the sun throughout the year.

Applications of Circles and Definition of a Circle

## Interactive Math Game--Memory Game: Circles

### Interactive Math Game--Memory Game: Circles Use this math game to review circles. This is a Memory-style game in which students must remember the location of pairs of identical images.

Definition of a Circle

## Interactive Crossword Puzzle--Circles

### Interactive Crossword Puzzle--Circles This interactive crossword puzzle tests knowledge of key terms on the topic of circles.

Definition of a Circle

## Math in the News: Issue 88--Examining the Polar Vortex

### Math in the News: Issue 88--Examining the Polar Vortex January 2014. In this issue of Math in the News we examine the Polar Vortex.

Applications of Circles

## INSTRUCTIONAL RESOURCE: Math Examples 1

### INSTRUCTIONAL RESOURCE: Math Examples--Circular Area and Circumference This set of tutorials provides 23 examples of solving for the area and circumferences of circles and sections of circles.

Area and Circumference

## Google Earth Voyager Story: Circular Structures, Part 1

### Google Earth Voyager Story: Circular Structures, Part 1 In this activity, learn about the architecture of the Roman Colosseum.

Applications of Circles

## Google Earth Voyager Story: Circular Structures, Part 2

### Google Earth Voyager Story: Circular Structures, Part 2 In this activity, learn about the architecture of the Roman Pantheon.

Applications of Circles and Cylinders

## Definition--Circle Concepts--Circular Arc

### Definition--Circle Concepts--Circular Arc This is a collection of definitions related to circles and related topics. This includes general definitions for parts of a circle, constructions involving circles, and other topics.

Definition of a Circle

## Definition--Circle Concepts--Arc Length

### Definition--Circle Concepts--Arc Length This is a collection of definitions related to circles and related topics. This includes general definitions for parts of a circle, constructions involving circles, and other topics.

Definition of a Circle

## Definition--Circle Concepts--Center of a Circle

### Definition--Circle Concepts--Center of a Circle This is a collection of definitions related to circles and related topics. This includes general definitions for parts of a circle, constructions involving circles, and other topics.

Definition of a Circle

## Definition--Circle Concepts--Chord

### Definition--Circle Concepts--Chord This is a collection of definitions related to circles and related topics. This includes general definitions for parts of a circle, constructions involving circles, and other topics.

Definition of a Circle

## Definition--Circle Concepts--Circle

### Definition | Circle Concepts | Circle This is part of a collection of definitions related to circles and related topics. This includes general definitions for parts of a circle, constructions involving circles, and other topics.

Definition of a Circle

## Definition--Circle Concepts--Diameter

### Definition--Circle Concepts--Diameter This is a collection of definitions related to circles and related topics. This includes general definitions for parts of a circle, constructions involving circles, and other topics.

Definition of a Circle

## Definition--Circle Concepts--Radius of a Circle

### Definition | Circle Concepts | Radius of a Circle This is part of a collection of definitions related to circles and related topics. This includes general definitions for parts of a circle, constructions involving circles, and other topics.

Definition of a Circle

## Definition--Circle Concepts--Secant to a Circle

### Definition--Circle Concepts--Secant to a Circle This is a collection of definitions related to circles and related topics. This includes general definitions for parts of a circle, constructions involving circles, and other topics.

Definition of a Circle

## Definition--Circle Concepts--Sector

### Definition--Circle Concepts--Sector This is a collection of definitions related to circles and related topics. This includes general definitions for parts of a circle, constructions involving circles, and other topics.

Definition of a Circle

## Formulas--Arc Length

### Formulas--Arc Length The formula for the Arc Length.

Area and Circumference

## Formulas--Area of a Circle

### Formulas--Area of a Circle The formula for the Area of a Circle.

Area and Circumference

## Formulas--Area of a Quarter Circle

### Formulas--Area of a Quarter Circle The formula for: Area of a Quarter Circle.

Area and Circumference

## Formulas--Area of a Sector of a Circle

### Formulas--Area of a Sector of a Circle The formula for: Area of a Sector of a Circle.

Area and Circumference

## Formulas--Area of a Semi-Circle

### Formulas--Area of a Semi-Circle The formula for: Area of a Semi-Circle.

Area and Circumference

## Formulas--Circumference of a Circle

### Formulas--Circumference of a Circle The formula for the Circumference of a Circle.

Area and Circumference