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

"Series wound dynamo, used for series aarc lighting, and as a booster for increasing the pressure on…

"In architecture, the swelling or outward curve of the profile of the shaft of a column. Entasis. e…

"Extradosed Arch. a, abutments; v, voussoirs; s, springs; i, imposts; In, intrados; p, piers; k, keystone;…

An illustration showing a model that illustrates the following relationships: a:x = x:a - x, x = √(a²…

"Capital and Springing of Arc, from the Hall of Abencerrages, Alhambra." — The Encyclopedia Britannica,…

"Curves other than arcs of circles are drawn with the pencil or ruling pen by means of curved or irregular-shaped…

An illustration of an arc electric lamp or an arc lamp which produces light by an electric arc.

"In ordinary work the usual way of rectifying an arc is to step around it with the dividers, in spaces…

"Diagram of the simple reflex arc. R, receptor; A, afferent (sensory) neuron; E, efferent (motor) meuron;…

A secant is "a line which cuts a figure in any way. Specifically, in trigonometry, a line from the center…

"In geometry: (a) A plane figure inclosed between the arc of a circle, ellipse, or other central curve…

An illustration showing a circle sector with radius r, center/central angle v, and length of circle…

An illustration showing a circle sector with center/central angle v and polygon angle w.

A sphere with arcs and poles. "The distance of all points in the circumference of a circle of a sphere…

An illustration of a sphere showing diameter, arcs, and circles. A sphere is a solid bounded by a curved…

An illustration of a sphere showing diameter, arcs, and circles. A sphere is a solid bounded by a curved…

An illustration of a sphere showing a radius of 1 foot. Illustration could be used for calculating volume.

Diagram showing 2 superimposed symmetrical spherical triangles.

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

Diagram showing a spherical triangle constructed by the intersection of polar arcs.

Diagram showing a spherical triangle constructed by the intersection of polar arcs.

Diagram showing a spherical triangle constructed by the intersection of polar arcs.