What is a set of squares?

Set Square is a tool of drawing used to draw known, preset angles in technical drawing and mathematical exercises. Set of squares have a triangular shape and is usually made of thin plastic, wood or less commonly, light. All set squares offer three surfaces of drawing or aircraft representing three different angles that always include one right angle. There are two common combinations of square angle, specifically 30 ° -60 ° -90 ° and 45 ° -45 ° -90 °. In order to use these drawing aids correctly, they must be placed on a stable flat surface, such as the T-rhombus cross hand at a known angle to the paper before drawing the desired angle.

Technical drawings and mathematical exercises often require the lines to be drawn at specific, accurate angles. Several physical drawing aids, including a compass, protractor and set, are used to achieve these precisely elaborated angles. Compasses and protractors can be used to indicate an anachestere large spectrum of angularCH planes, but the simplest method of drawing conventional angles, such as 30 °, 45 ° and 90 °, is set square. These drawing aids consist of a flat triangular shape, usually in its center hollow and representing a set of three known angles, one of which is always a right angle. Set squares can be found at 30 ° -60 ° -90 ° or 45 ° -45 ° -90 °.

For the correct use of a set of squares, it must have one side of the desired angle located on a stable, flat baseline, such as the cross hand of the T-rhombus oriented at a known angle, usually perpendicular to the paper. Then a pencil or pen is used to indicate the angle along the second edge of the angle. In this way, a set of perfectly parallel angles can be drawn on the paper, which will be quite simple to draw a comprehensive orthographic projection. Set Squares can also be used to draw Lines at specific angles to existing lines on the drawing without using t-The furniture, if care is taken to accurately align the set with existing lines.

Set Set are available in a wide range of sizes and materials, including transparent plastic, wood or even light or aluminum. The tools are often bought in sets that include both common angles, along with rulers and protracts. There are also adjustable sets of squares on the market, although they do not qualify as such because they do not represent a group of angles.