This mathematics ClipArt gallery offers 148 images of curved, broken, and straight lines. Also included are illustrations of intersecting, parallel, perpendicular, and transversal lines.

A curved line with endpoints.

Line, Curved

A curved line with endpoints.

A curved line with endpoints.

Line, Curved

A curved line with endpoints.

A curved s-shaped line.

Line, Curved

A curved s-shaped line.

Illustration of a projection of a curved line.

Projection of a Curved Line

Illustration of a projection of a curved line.

A curved wavy line.

Line, Curved Wavy

A curved wavy line.

The illustration of an irregular curves for solid. The isometric projection of the curve can be drawn by the series of perpendicular lines parallel to the axis.

Drawing Irregular Isometric Curves of Solid

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

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.

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.

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.

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.

Illustration of a horizontal line segment. A line segment is a section of a line with definite endpoints. The endpoints are marked A and B.

Segment, Horizontal Line

Illustration of a horizontal line segment. A line segment is a section of a line with definite endpoints.…

Isosceles Triangle with a dotted vertical line that is a line of symmetry.

Vertical Line of Symmetry, Isosceles Triangle With

Isosceles Triangle with a dotted vertical line that is a line of symmetry.

Letter A 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.

Letter B with a dotted horizontal 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.

Broken line

Broken Line

Broken line

An illustration of a broken line.

Broken Line

An illustration of a broken line.

Illustration of a broken line.

Broken Line

Illustration of a broken line.

Curved line

Curved Line

Curved line

An illustration of a curved line.

Curved Line

An illustration of a curved line.

Illustration of a curved line.

Curved Line

Illustration of a curved line.

Line divided into proportional parts.

Line Divided Into Parts

Line divided into proportional parts.

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.

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.

Illustration showing that the perpendicular is the shortest line that can be drawn to a straight line from an external point.

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…

The line revolved into V and projection H in coordinate plane.

Profile Line

The line revolved into V and projection H in coordinate plane.

Illustration of a line projection. If perpendiculars be drawn from the extremities of a line, as AB, to another line, as HK, as shown in the figure, that portion of HK included between the foot of each perpendicular is called the projection of AB upon HK.

Projection of a Line

Illustration of a line projection. If perpendiculars be drawn from the extremities of a line, as AB,…

Illustration of straight line AB projected upon HK.

Projection Of A Line

Illustration of straight line AB projected upon HK.

Illustration of curved line AB projected upon a flat surface.

Projection Of A Line

Illustration of curved line AB projected upon a flat surface.

Projections of a line parallel to a plane.

Projections of a Line

Projections of a line parallel to a plane.

Projections of a line perpendicular to a plane.

Projections of a Line

Projections of a line perpendicular to a plane.

Projections of a line inclined to a plane.

Projections of a Line

Projections of a line inclined to a plane.

Projections of a line inclined to both the horizontal and vertical planes will not show its true length, as represented in this drawing.

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's true length by revolving horizontal projection.

Projections of a Line

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

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

Projections of a Line

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

Straight line

Straight Line

Straight line

An illustration of a straight line/segment.

Straight Line

An illustration of a straight line/segment.

Illustration of a straight line.

Straight Line

Illustration of a straight line.

An illustration of a straight line with 5 points dividing it into 4 equal parts. Multiple of a given line.

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…

An illustration of a straight line with a point.

Straight Line With Point

An illustration of a straight line with a point.

Illustration of two lines intersecting at a point. This can be used to show vertical angles.

Intersecting Straight Lines

Illustration of two lines intersecting at a point. This can be used to show vertical angles.

Illustration showing two straight lines drawn from the same point in a perpendicular to a given line, cutting off on the line unequal segments from the foot of the perpendicular, the more remote is the greater.

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,…

Illustration showing two lines CA and CB drawn from the point C to the extremities of the straight line AB. OA and OB are two lines similarly drawn, but included by CA and CB. This can be used to show the theorem: The sum of two lines drawn from a point to the extremities of a straight line is greater than the sum of two other lines similarly drawn, but included by them.

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…

Illustration of two straight lines drawn from a point in a perpendicular to a given line, cutting off on the given line equal segments from the foot of the perpendicular, are equal and make equal angles with the perpendicular. This illustration can be used to show the proof.

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…

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

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.

Illustration of intersecting lines with A being the point of intersection.

Intersecting Lines

Illustration of intersecting lines with A being the point of intersection.

Parallel lines

Parallel Lines

Parallel lines

Parallel lines

Parallel Lines

Parallel lines

Parallel lines

Parallel Lines

Parallel lines

Illustration showing two straight lines in the same plane perpendicular to the same straight line are parallel.

Parallel Lines

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

Illustration showing if a straight line is perpendicular to one of two parallel lines, it is perpendicular to the other also.

Parallel Lines

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

Illustration of parallel lines.

Parallel Lines

Illustration of parallel lines.

Illustration of two parallel lines with equal segments between them. Two parallel lines are everywhere equally distant.

Parallel Lines With Equal Segments Between

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

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

Perpendicular Lines

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

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

Perpendicular Lines

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

Illustration of perpendicular lines with the horizontal and vertical lines labeled. "A horizontal line is a line parallel to the horizon, or water level. A vertical line is a line perpendicular to a horizontal line; consequently, it has the direction of a plumb-line."

Perpendicular Lines With Horizontal and Vertical Labeled

Illustration of perpendicular lines with the horizontal and vertical lines labeled. "A horizontal line…

Projections of a lines parallel to ground line.

Projections of a Lines

Projections of a lines parallel to ground line.

Illustration of two straight lines that can be used to find ratios.

Straight Lines to Find Ratios

Illustration of two straight lines that can be used to find ratios.

Illustration showing that a transversal is a straight line that cuts two or more straight lines.

Lines Cut By A Transversal

Illustration showing that a transversal is a straight line that cuts two or more straight lines.

Illustration showing that when three or more parallel lines intercept equal parts on one transversal, they intercept equal parts on every transversal.

Parallel Lines Cut By A Transversal

Illustration showing that when three or more parallel lines intercept equal parts on one transversal,…

Illustration showing that if two parallel lines are cut by a transversal, then the alternate interior angles are equal.

Parallel Lines Cut By A Transversal

Illustration showing that if two parallel lines are cut by a transversal, then the alternate interior…