This mathematics ClipArt gallery offers 213 illustrations of common geometric constructions. Geometric constructions are made with only the use of a compass and a straight edge. In addition to the constructions of different types of polygons, images include those used to show how to bisect a line, angle, and arc. ### Construction Of Angle Bisector

Illustration showing how to construct the bisector of an angle. ### Construction Of Angle On Straight Line

Illustration used to show how to "draw a straight line through any given point on a given straight line… ### Bisect An Angle

Illustration used to show how to construct a bisector of an angle when the sides intersect within the… ### Bisect An Angle

Illustration used to show how to construct a bisector of an angle when the sides no not intersect within… ### Construction of Angle

Illustration of construction to lay off an angle. ### Construction Of A Divided Angle

An illustration showing the construction used to divide an angle into two equal parts. "With C as a… ### Construction Of A Divided Angle

An illustration showing the construction used to divide an angle into two equal parts when the lines… ### Approximate Ellipse using Lines

"When the minor axis is at least two-thirds the major, the following method ma be used: Make CF and… ### Approximate Ellipse with Five Centered Arc

"This (five centered arc) method is based on the principle that the radius of curvature at the end of… ### Approximate Ellipse with Four Centers

"Join A and D. Lay off DF equal to AC-DC. Bisect AF by a perpendicular crossing AC at G and intersecting… ### Approximating Length of Circle Arc using Straight Line

"At A draw the tangent AD and Chord AB produced. Lay off AC equal to half the chord AB. With center… ### Draw Arc of Given radius R Tangent to Two Given Lines

"Draw lines parallel to AB and CD at distant R from them. The intersection of these lines will be center… ### Bisecting an Arc

Illustration used to show how to bisect a given arc. ### Construction Of Arc

Illustration used to show how to "find an arc of a circle having a known radius, which shall be equal… ### Draw Spiral of Archimedes

"Divide the circumference into a number of equal parts, drawing the radii and numbering the points.… ### Bisect A Line

Method to draw the bisector of a line ### Bisect An Angle

Method to bisect an angle ### Construction Of A Center And Radius Of A Circle That Will Tangent A Given Circle And Line

An illustration showing how to construct the center and radius of a circle that will tangent a given… ### Construction Of A Center And Radius Of A Circle That Will Tangent A Given Circle And Line

An illustration showing how to construct the center and radius of a circle that will tangent a given… ### Construction Of A Center And Radius Of A Circle That Will Tangent A Given Circle

An illustration showing how to construct the center and radius of a circle that will tangent a given… ### Construction Of The Center And Radius Of A Circle Tangent To Triangle Sides

An illustration showing how to construct a center and radius of a circle that will tangent the three… ### Construction Of Center

Illustration used to show how to find the center when given an arc and its radius. ### Construction Of A Circle Arc

An illustration showing how to construct a circle arc without recourse to its center, but its chord… ### Construction of Circle Given 3 Points

Illustration used to construct a circle when given three points. ### Construction Of A Circle Tangent To A Line And A Circle

An illustration showing how to construct a circle tangent to a given line and given circle. "Add the… ### Construction Of A Circle That Tangents 2 Given Lines And Goes Through A Given Point

An illustration showing how to construct a circle that tangents two given lines and goes through a given… ### Construction Of A Circle That Tangents 2 Given Lines

An illustration showing how to construct a circle that tangents two given lines inclined to one another… ### Center of a Circle

Illustration used to find the center of a circle. ### Find The Center Of A Circle Through 3 Points

An illustration showing how to find the center of a circle which will pass through three given points… ### Involute of Circle

"A circle may be conceived as a polygon of an infinite number of sides. Thus to draw the involute of… ### Isometric Drawing of Circle using Square

The illustration of constructing a circle or ellipse using isometric drawing. The inscribed circle is… ### Draw Circular Arc Through Three Given Points

"Join AB and BC, bisect AB and BC by perpendiculars. Their intersection will be the center of the required… ### Construction Of Circumference

Illustration used to show how to pass a circumference through any three points not in the same straight… ### Drawing Concentric Arcs with Compass and Lengthening Bar

"On horizontal center line mark off eight points 3/8" apart, beginning at right side of space." —French,… ### Drawing Concentric Arcs with Compass

"On horizontal center line mark off eleven points 1/4" apart, beginning at left side of space. Draw… ### Drawing Concentric Circles with Compass

"Draw Horizontal line throuch center of space. On it mark off radii for six concentric circles 1/4"… ### Development Exercise of Cone

Development and top completion exercise problem of the cone by dividing the base into equal parts and… ### Development Exercise of Flange and Hood Cones

An exercise problem to complete the top and develop, stretched out, image of the flange and hood cones… ### 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… ### 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… ### Construct Equilateral Triangle

Method to construct an equilateral triangle ### Construct Isosceles Triangle

Method to construct an isosceles triangle ### Construct Scalene Triangle

Method to construct a scalene triangle ### Constructing Parabola using Parallelogram

A parabola can be constructed by using the parallelogram method of ellipses. —French, 1911 ### Construction of Ellipse using Ellipsograph

An ellipsograph uses the trammel method to create ellipses. ### Construction of Ellipse using Parallelogram

Create diameters with major, minor axes, or a pair of conjugate diameters. Construct a parallelogram,… ### Construction of Ellipse using Pin and String

An ellipse can be constructed by pinning three pins and tying an inelastic in tightly around the pins. ### Construction of Ellipse using Trammel Method

Trammel method is a construction of an ellipse using a strip of paper, thin cardboard or sheet celluloid. ### Construction of Bisecting a Given Angle

Illustration of the construction used to bisect a given angle. ### Construction of Bisecting a Given Arc

Illustration of the construction used to bisect a given arc. ### Construction of Bisecting a Given Line

Illustration of the construction used to bisect a given line. ### Construction of a Circle When Given Two Points and a Radius

Illustration used to construct a circle when given two points that it passes through and a radius. ### Triangle With Circle Constructions

Illustration of a triangle with its incircle and three excircles constructed. ### Construction to Circumscribe a Circle About a Triangle

Illustration of the construction used to circumscribe a circle about a given triangle. ### Construction of a Common Tangent When Given Two Circles

Illustration used to construct a common tangent when given two circles. ### Construction of Dividing Lines

A line which is divided into seven equal parts, shown by construction.