### Development of Cone

A rolled out image of a cone by dividing the base in equal parts and arcs to measure the true lengths.

### Conic Axes

Conjugate diameters perpendicular to each other are called, axes, and the points where they cut the…

### Conic Section Using Circle

The cone is sliced by a circle in a plane perpendicular to the axis. This can be drawn without knowledge…

### Conic Section Using Ellipse

The cone is sliced by a ellipse by making an angle within the plane. This can be drawn with knowing…

### Conic Section Using Hyperbola

The cone is sliced by a hyperbola within a plane. The angle of the hyperbola will make a smaller angle…

### Cone depicting Conic Sections

Diagram of a cone with spheres and cut by a plane to depict the conic sections.

### Cone depicting Conic Sections

Diagram of a cone with inscribed spheres and cut by various planes to depict the conic sections: circle,…

### Construction of a Conic

Diagram showing how to construct a conic when given the focus and the auxiliary circle. If the focus…

### Focus In Auxiliary Circle of Conic

Diagram showing how to construct a conic when given the focus and the auxiliary circle. The focus is…

### Focus In Auxiliary Circle of Conic

Diagram showing how to construct a conic when given the focus and the auxiliary circle. As the focus…

### Development of Cylinder

The illustration shows the cylinder rolled out in a tangent plane of the base to create a development…

### Ellipse

One of the three species of conic sections is the ellipse.

### Construction of Ellipse by Describing Circles

Illustration used to draw a an ellipse using string and pins by describing a circles with diameters…

### Construction of Ellipse Using String

Illustration used to draw a an ellipse using string and pins.

### Construction of Ellipse

Illustration used to draw a an ellipse with major axis AB and minor axis CD.

### Construction of an Ellipse

Diagram showing how to construct an ellipse when given the two foci and the length of the major axis…

### Definition of Ellipse

Diagram of an ellipse that can used to illustrate the definition. "The constant ration between the distances…

### Foci Distances on an Ellipse

Diagram that illustrates "The algebraic sum of the distances of any point from the foci of a conic is…

### Parts of Ellipse

Diagram of an ellipse that can used to illustrate the different parts. Segment MN is the major axis,…

### Tangent to an Ellipse

Diagram an ellipse with a tangent line that illustrates "A line through a point on the ellipse and bisecting…

### Development of Hexagonal Prism

An illustration of a hexagonal prism rolled out, or "stretched out" in the straight line AB.

### Development of Hexagonal Pyramid

An image of a hexagonal pyramid stretched out. The length of the edges are equal plane, and intersects…

### Hyperbola

One of the three species of conic sections is the hyperbola.

### Cone Intersected by a Plane to Form a Hyperbola

Diagram depicting a cone with both nappes intersected by plane J to form a hyperbola.

### Hyperbola Conjugate Diameters

Any two conjugate diameters of an hyperbola are harmonic conjugates with regard to the asymptotes.

### Construction of a Hyperbola

Diagram showing how to construct a hyperbola when given the two foci and the length of the major axis…

### Tangent to a Hyperbola

Diagram part of a hyperbola with a tangent line that illustrates "A line through a point on the hyperbola…

### Oblique Cone by Triangulation Connecting to Two Parallel Pipes of Different Diameters

"An oblique cone connecting two parallel pipes of different diameters... the true size of the base is…

### Development of Oblique Cone by Triangulation

A development or rolled out oblique cone using triangulation. The method of triangulation is done by…

### Development of Octagonal Dome

A stretched out image of the octagonal dome by using projection or with dividers to create a five-piece…

### Parabola

One of the three species of conic sections is the parabola.

### Cone Intersected by a Plane to Form a Parabola

Diagram of a cone intersected by plane J to form a parabola. Also pictured is a circle formed by the…

### Construction of a Parabola

Diagram showing how to construct a parabola when given the directrix (d), the focus (F) and the eccentricity…

### Development of Rectangular Pyramid

The illustration of a rectangular pyramid unfolded by creating edges equal length to the base and meeting…

### Development of Sphere Gore Method

An illustration in flattening the sphere using Gore method by creating cylinder sections with equal…

### Development of Sphere Zone Method

An illustration of a development of sphere using Zone method by creating sections of rolled out cones.