### Equal Chords in Equal Circles Theorem

Illustration used to show that "In equal circles, or in the same circle, if two chords are equal, they…

### Unequal Chords in Circles Theorem

Illustration used to show that "In equal circles, or in the same circle, if two chords are unequal,…

### Unequal Chords in Equal Circles Theorem

Illustration used to show that "In equal circles, or in the same circle, if two chords are unequal,…

### Unequal Chords in Equal Circles Theorem

Illustration used to show that "In equal circles, or in the same circle, if two chords are unequal,…

### 11 Concentric Circles

Illustration of eleven concentric circles.

### 11 Concentric Circles

Illustration of eleven concentric circles.

### 12 Overlapping Circles About a Center Circle and Inside a Larger Circle

Circular rosette-like pattern made with 12 overlapping congruent circles tangent to a center circle…

### 2 Concentric Circles

Illustration of two concentric circles.

### 2 Externally Tangent Circles

Illustration of two circles that are externally tangent to each other.

### 2 Internally Tangent Circles

Illustration of two circles that are internally tangent to each other.

### 2 Intersecting Circles

2 congruent circles whose intersection includes a tangent circle with diameter equal to the radii of…

### 2 Intersecting Circles

Illustration showing a circle with a radius of 2 in. intersecting a circle with a radius of 3 in..

### 2 Smaller Horizontally Placed Circles In A Larger Circle

A large circle containing 2 smaller congruent circles. The small circles are externally tangent to each…

### 2 Smaller Vertically Placed Circles In A Larger Circle

A large circle containing 2 smaller congruent circles. The small circles are externally tangent to each…

### 24 Overlapping Circles About a Center Circle and Inside a Larger Circle

Circular rosette-like pattern made with 24 overlapping congruent circles tangent to a center circle…

### 3 Concentric Circles

Illustration of three concentric circles.

### 3 Smaller Circles In A Larger Circle

A large circle containing 3 smaller congruent circles. The small circles are externally tangent to each…

### 3 Smaller Circles In A Larger Circle

A large circle containing 3 smaller congruent circles. The small circles are externally tangent to each…

### 4 Concentric Circles

Illustration of four concentric circles.

### 4 Smaller Circles In A Larger Circle

A large circle containing 4 smaller congruent circles. The small circles are externally tangent to each…

### 4 Smaller Circles In A Larger Circle

A large circle containing 4 smaller congruent circles. The small circles are externally tangent to each…

### 48 Overlapping Circles About a Center Circle and Inside a Larger Circle

Circular rosette-like pattern made with 48 overlapping congruent circles tangent to a center circle…

### 5 Concentric Circles

Illustration of five concentric circles.

### 5 Tangent Circles

A sequence of five circles tangent to each other at a point. The radius decreases by one half in each…

### 6 Concentric Circles

Illustration of six concentric circles.

### 7 Congruent Circles In A Regular Hexagon

A regular hexagon containing 7 congruent circles. The circles are externally tangent to each other and…

### 7 Smaller Circles In A Larger

A large circle containing 7 smaller congruent circles. The small circles are externally tangent to each…

### 7 Smaller Circles In A Larger Circle

A large circle containing 7 smaller congruent circles. The small circles are externally tangent to each…

### 7 Tangent Circles

7 congruent circles. 6 of the circles are equally placed about the center circle. The circles are externally…

### Circles With Angles Formed by Secants and Tangents

Illustration showing angles formed by two secants, two tangents, or a tangent and a secant, drawn to…

### Circumferences of 2 Circles

Illustration used to prove "If two circumferences meet at a point which is not on their line of centers,…

### Concentric Circles

Illustration of concentric circles.

### Concentric Circles (Ring) Area

Illustration of concentric circles used to find area between two circles (ring).

### Concentric Circles With Angle of 1 °

"If AOB is an angle of 1 ° on the larger circle, it is also 1 ° on the smaller concentric circle,…

### Circles Enclosed in Equilateral Triangle

Illustration of three circles enclosed in an equilateral triangle.

### Equal Circles With Intercepted Arcs

Illustration of equal circles to show that two central angles have the same ratio as their intercepted…

Illustrations of 2 equal circles with radii drawn.

### Equal Circles With Radii and Chords

Illustrations of 2 equal circles with radii drawn.

### Infinite Tangent Circles

An illustration depicting an infinite sequence of tangent circles with the radius converging to zero.…

### Circles With Inscribed Angles

Illustration of equal circles to show that an inscribed angle is measured by half the arc intercepted…

### Circle With Polygon and Square Inscribed

Illustration of a circle with a polygon (octagon) and square inscribed.

### Circles Inside of a Square

Illustration of large circle and square with 4 smaller circles inside.

### Intersecting Circles

Intersecting circles with chords and radii.

### Intersecting Circles

Illustration of intersecting circles. "If two circles intersect each other, the line joining their centers…

### Intersecting Lines in Circles

Illustration showing various circles and the angles formed by intersecting lines.

### Intersecting Circles With a Common Chord

Illustration of intersecting circles with a common chord.

### Two Intersecting Circles With Lines

Illustration showing 2 intersecting circles with a line drawn through each point of intersection terminated…

### Two Intersecting Circles With Lines

Illustration showing 2 intersecting circles with a lines drawn that form a triangle.

### Circles With Parallels Intercepting Equal Arcs

Illustration of a circle with parallels intercepting equal arcs on a circumference.

### Circular Pipes in Box

Illustration of box filled with pipes.

### Star Inscribed And Circumscribed About Circles

Illustration of a 6-point star (convex dodecagon) inscribed in a large circle and circumscribed about…

### Star Inscribed And Circumscribed About Circles

Illustration of an 8-point star (convex polygon) inscribed in a large circle and circumscribed about…

### Tangent Circles

Illustration of two circles that are tangent to each other, the line of center passing through the point…

### Tangent Circles

Illustration of tangent circles. One circle is said to be tangent to another circle when they touch…

### Tangent Circles With Chords

Illustration showing 2 circles with that touch each other and two lines drawn through the point of contact…

### Projection of Circular Ring

Projection of a circular ring.

### Circular Shield

A circle shape of a shield or escutcheon in heraldry.

### Construction Of Circumference

Illustration used to show how to pass a circumference through any three points not in the same straight…

### Compass Use

The use of a compass in drawing perfect circles

### Beam Compass

Compass beam is used for large circles a compass or a lengthening bar cannot draw.