This mathematics ClipArt gallery offers 155 images of curved, broken, and straight lines. Also included are illustrations of intersecting, parallel, perpendicular, and transversal lines. ### Projection of a Curved Line

Illustration of a projection of a curved line. ### Drawing Irregular Isometric Curves of Solid

The illustration of an irregular curves for solid. The isometric projection of the curve can be drawn… ### Drawing Parallel Lines

Using a drawing board and pairs of triangles to draw parallel lines. ### Hand Drawing

A hand demonstrating inking parallel lines using a t-square and a drafting board. ### Line, Horizontal

A horizontal line with arrows at both ends to show that it extends indefinitely. ### Line, Horizontal

A horizontal line with arrows at both ends to show that it extends indefinitely. ### Segment, Horizontal Line

Illustration of a horizontal line segment. A line segment is a section of a line with definite endpoints. ### Segment, Horizontal Line

Illustration of a horizontal line segment. A line segment is a section of a line with definite endpoints. ### Segment, Horizontal Line

Illustration of a horizontal line segment. A line segment is a section of a line with definite endpoints.… ### Vertical Line of Symmetry, Isosceles Triangle With

Isosceles Triangle with a dotted vertical line that is a line of symmetry. ### Vertical Line of Symmetry, Letter A With

Letter A with a dotted vertical line that is a line of symmetry. ### Horizontal Line of Symmetry, Letter B With

Letter B with a dotted horizontal line that is a line of symmetry. ### Line Divided Into Parts

Line divided into proportional parts. ### Length of a Line in Coordinate Plane

The line ab is projected in the coordinate plane. ### Length of a Line in Coordinate Plane

The line ab is projected in the coordinate plane. ### Perpendicular Line

A perpendicular line on a coordinate plane, showing what y the y-coordinate will be. ### Perpendicular Line Drawn To a Given Line From an External Point

Illustration showing that the perpendicular is the shortest line that can be drawn to a straight line… ### Profile Line

The line revolved into V and projection H in coordinate plane. ### Projection of a Line

Illustration of a line projection. If perpendiculars be drawn from the extremities of a line, as AB,… ### Projection Of A Line

Illustration of straight line AB projected upon HK. ### Projection Of A Line

Illustration of curved line AB projected upon a flat surface. ### Projections of a Line

Projections of a line parallel to a plane. ### Projections of a Line

Projections of a line perpendicular to a plane. ### Projections of a Line

Projections of a line inclined to a plane. ### Projections of a Line

Projections of a line inclined to both the horizontal and vertical planes will not show its true length,… ### Projections of a Line

Projections of a line's true length by revolving horizontal projection. ### Projections of a Line

Projections of a line's true length by revolving vertical projection. ### Straight Line

An illustration of a straight line/segment. ### Straight Line

Illustration of a straight line. ### Straight Line

An x=y line on a coordinate plane. ### Straight Line

Equation of a straight line: a) parallel to y-axis, b) parallel to x-axis. ### Straight Line With Points Divided Into Equal Parts

An illustration of a straight line with 5 points dividing it into 4 equal parts. Multiple of a given… ### Straight Line With Point

An illustration of a straight line with a point. ### Lines

A circle with many tangent and secant lines passing through it. ### Intersecting Straight Lines

Illustration of two lines intersecting at a point. This can be used to show vertical angles. ### Lines Drawn From the Same Point in a Perpendicular to a Given line, Cutting Off Segments

Illustration showing two straight lines drawn from the same point in a perpendicular to a given line,… ### Lines Drawn From the Point C to the Extremities of the Straight line AB

Illustration showing two lines CA and CB drawn from the point C to the extremities of the straight line… ### Lines Drawn to Another Line to Form Triangle

Illustration of two straight lines drawn from a point in a perpendicular to a given line, cutting off… ### Perpendicular Line Drawn to a Given Line from an External Point

Illustration showing only one perpendicular can be drawn to a given line from a given external point. ### Intersecting Lines

Illustration of intersecting lines with A being the point of intersection. ### Parallel Lines

Illustration showing two straight lines in the same plane perpendicular to the same straight line are… ### Parallel Lines

Illustration showing if a straight line is perpendicular to one of two parallel lines, it is perpendicular… ### Parallel Lines

Illustration of parallel lines. ### Parallel Lines With Equal Segments Between

Illustration of two parallel lines with equal segments between them. Two parallel lines are everywhere… ### Perpendicular Lines

Right angle at perpendicular lines demonstrated by string on plumb line. ### Perpendicular Lines

Illustration of perpendicular lines. Intersecting lines that meet at a right angle.