 ### 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… ### Sphere With Quadrants

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.