### Sphere With Tangent Plane

Illustration of a sphere with a tangent plane. "A plane perpendicular to a radius at its extremity is…

### Polyhedral Angle in a Sphere

Illustration of a sphere with a polyhedral angle whose vertex is at the center of the sphere and whose…

### Polyhedral Angle in a Sphere

Illustration of a sphere with a polyhedral angle.

### Sphere With Quadrants and Poles

A sphere with quadrants and poles. "A point on the surface of a sphere, which is at the distance of…

A sphere with quadrants drawn on it.

### Wooden Sphere

A wooden hollow sphere created by using a lathe and wooden templet at a desired diameter.

### Equal Spheres With Triangles

Illustration of equal spheres with equal triangles.

### Equal Spheres With Triangles

Illustration of equal spheres with equilateral and equiangular triangles.

### Intersecting Spheres

Illustration of two intersecting spheres. "The intersection of two spherical surfaces is the circumference…

### Construction Of A Square Circumscribed About A Circle

An illustration showing how to construct a square circumscribed about a circle. "Draw the diameters…

### Construction Of A Square Inscribed In A Circle

An illustration showing how to construct a square inscribed in a circle. "Draw the diameter AB, and…

### Construction Of Square Inscribed In Circle

Illustration used to show how to inscribe a square in a given circle.

### Circle Inscribed In A Square

An illustration of a circle inscribed in a square. It can be used to show that the area of a circle…

### Construction Of A Talon

An illustration showing how to construct a talon, or two circle arcs that will tangent themselves, and…

### Point of Tangency

Illustration of point of tangency (line and circle).

### Point of Tangency

Illustration of radius drawn to point of contact of a tangent.

### Construction Of Tangent Between 2 Circles

An illustration showing how to construct a tangent between 2 given circles. "Join the centers C and…

### Construction Of Tangent To 2 Circles

An illustration showing how to construct a tangent to 2 given circles of different diameters. "Join…

### Construction Of Circle Tangent To 2 Circles

An illustration showing how to construct a tangent circle to 2 given circles. "Join centers C and c…

### Construction of Tangent to a Circle

Illustration used to draw a tangent to a circle.

### Construction of a Tangent to a Circle

Illustration used to show how "to construct a tangent to a circle from a point outside."

### Construction Of Tangent To Circle

An illustration showing how to construct a tangent to a circle through a given point in a circumference.…

### Construction Of Tangent To Circle

An illustration showing how to construct a tangent to a circle through a given point outside of a circumference.…

### Construction Of Circle Tangent To Circle

An illustration showing how to construct a tangent circle to a circle with a given radius. "Through…

### Cylindrical Water Tank

Cylindrical water tank with a height of 10 ft., thickness of 3 inches, and diameter of 3 feet. The diagram…

### Development Exercise of Cylinder using Three Piece Elbow

The exercise problem of creating a three piece elbow development or rolled out image of the cylinder…

### Circle Inscribed In A Triangle

An illustration showing a circle with radius r inscribed in a triangle with sides a, b, and c.

### Circle Inscribed In A Triangle

An illustration showing a circle with sectors D and E inscribed in a triangle with angles, A, B, and…

### Construction Used to Circumscribe a Circle About a Triangle

Illustration used to circumscribe a circle about a given triangle.

### Construction Used to Escribe a Circle to a Triangle

Illustration used to escribe a circle to a given triangle. "A circle which is tangent to one side of…

### Construction Used to Inscribe a Circle in a Triangle

Illustration used to inscribe a circle in a given triangle.

### Isosceles Spherical Triangle

Illustration of an isosceles spherical triangle.

### Isosceles Spherical Triangle

Illustration of an isosceles spherical triangle.

### Circle Made Up Of Triangles

"A circle may be considered as made up of triangles whose bases form the circumference, and whose altitude…

### Polar and Spherical Triangles

Illustration of polar and spherical triangles.

### Polar Triangles in Sphere

Illustration of polar triangles.

### Symmetric Spherical Triangles

Illustration of symmetrical spherical triangles.

### Symmetric Spherical Triangles

Illustration of symmetrical spherical triangles.

### Symmetric Spherical Triangles

Illustration of symmetrical spherical triangles.

### Construction Of Two Circles That Tangent Themselves and 2 Given Lines

An illustration showing how to construct two circles that tangent themselves and two given lines. "Draw…

### Pocket Watch

This pocket watch has a unique design on its back of leaves and circles. The circular handle at the…

### Cross Section of Water Tank

Cross section of Pullman car water tank. The diagram can be used to find volume.

### Wheel Mechanism

Theory of static equilibrium of mechanism, illustrated b Sir A.B.W. Kennedy.