Centimeter Ruler, others, purple, blue, angle png 640x320px 41.08KB.Ruler, Centimeter, Length, Instrument, Measure, School, Office, png 1280x906px 434.51KB.Straightedge Cartoon Eraser Set square, Cartoon ruler eraser, cartoon Character, pencil, cartoon Arms png 2960x3142px 311.32KB.Tool Straightedge Ruler Icon, Hand painted board learning tools, watercolor Painting, painted, pencil png 1267x889px 578.29KB.Ruler Text, Centimeter, Drawing, Millimeter, Line Segment, Inch, Measurement, Triangle, Ruler, Centimeter, Drawing png 1920x1649px 429.52KB.Ruler Compass Straightedge, Ruler compass, angle, triangle, technic png 650圆50px 55.98KB.Ruler, Measure, Measurement, Tool, Measuring, Equipment, Length, Tape Measure, Centimeter, Meter, png 640x1280px 17.2KB.Addition Pencil Centimeter Ruler Angle, pencil, angle, pencil, text png 1956x567px 24.72KB.Inch, Ruler, Measurement, Centimeter, Scale, Millimeter, png 1280圆40px 181.53KB.The Ruler, Setsquare, Centimeter, Measure, School, School Supplies, Millimeter, png 1280x1099px 258.99KB.Ruler Measurement Centimeter, pushpin, angle, text, rectangle png 1920x960px 11.6KB.The Ruler, Wooden Ruler, Setsquare, Centimeter, Measure, School, School Supplies, Millimeter, Kreślarski, png 1280x947px 705.78KB.Ruler, Measure, Length, Meter, Cm, Centimeter, Office, Tool, png 1280圆40px 49.94KB.Ruler, Inch, Measure, Centimeter, Length, Millimeter, Equipment, Work, Meter, Size, png 1280圆40px 6.21KB.yellow ruler illustration, Mathematics Ruler Teacher Measurement Compass-and-straightedge construction, t ruler, number, multiplication, worksheet png 1168x1150px 30.4KB.Ruler, Metric, Measure, Length, Millimeter, Centimeter, Mm, Cm, png 1280圆40px 12.47KB.Maßband, Measuring Tape, Centimeters, Meter, Centimeter, Massband, Distance, Length, Millimeter, Measure, png 1280圆40px 8.66KB.Straightedge Pencil Ruler, ruler, blue, product, pen png 3550x3550px 2.34MB.Ruler Centimeter Millimeter Inch Measurement, others, angle, text, rectangle png 2446x3091px 184.95KB.Straightedge Ruler Icon, Scale ruler, texture, angle, white png 800x800px 36.28KB.In this gallery "Ruler" we have 106 free PNG images with transparent background. In this page you can download free PNG images: Ruler PNG images free download The illustrations on this page show a 2 m (6 ft 7 in) carpenter's rule, which folds down to a length of 25 cm (10 in) to easily fit in a pocket, and a 5 m (16 ft) tape, which retracts into a small housing. When extended for use, they are straight, like a ruler. Measuring instruments similar in function to rulers are made portable by folding (carpenter's folding rule) or retracting into a coil (metal tape measure) when not in use. More detailed line gauges may contain sample widths of lines, samples of common type in several point sizes, etc. Units of measurement on a basic line gauge usually include inches, agate, picas, and points. These may be made from a variety of materials, typically metal or clear plastic. Practical rulers have distance markings along their edges.Ī line gauge is a type of ruler used in the printing industry. Classically, long measuring rods were used vt|for larger projects, now superseded by tape measure or laser rangefinders.ĭesk rulers are used for three main purposes: to measure, to aid in drawing straight lines and as a straight guide for cutting and scoring with a blade. Rigid wooden or plastic yardsticks, 1 yard long, and meter sticks, 1 meter long, are also used. Longer rulers, e.g., 18 in (46 cm) are necessary in some cases. Shorter rulers are convenient for keeping in a pocket. 12 in or 30 cm in length is useful for a ruler to be kept on a desk to help in drawing. Metal is used for more durable rulers for use in the workshop sometimes a metal edge is embedded into a wooden desk ruler to preserve the edge when used for straight-line cutting. Plastics have also been used since they were invented they can be molded with length markings instead of being scribed. Rulers have long been made from different materials and in a wide range of sizes. They did not draw lines with their scales, they used set or T squares when ruling a line. Engineering designers used (before the advent of CAD) devices with graduations marked on their edge called scales, when setting out or measuring length on a drawing. A ruler, sometimes called a rule or line gauge, is a device used in geometry, technical drawing, engineering and building to rule straight lines.
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