Instrument Ruller, Rubber, set square, T Square, Drawing Table, Compass, etc.
A set square is a tool for marking angles in engineering and technical drawing, etc. They come in different angles and may be adjustable.
A set square is used in geometry to draw parallel lines. It is also used to make sure that angles are drawn correctly. There are grooves in the set square where a pencil can be inserted to draw a line. There is also a hinge that allows for moving the two pieces of the set square to the proper angle before drawing.
for drawing inclined lines
Set squares are useful for drawing parallel lines and perpendicular lines.
The common drawing instruments are mechanical pencil, ruler, drafter, set of square, curves, drawing board, board clips, and it goes on............
Used for drawing horizontal lines. To support set squares when drawing vertical line and inclined lines.
An engineering drawing, that is, a technical drawing or set of schematics that follow international standards of commonly recognized de-facto rules can be understood without language, and with a minimum amount of words written on the drawing. The drawing conveys a lot of information that would be error prone and ambiguous when conveyed through human language.
A try square is a metal ruler which is attached at right angles to another piece of metal, which looks like a triangle and is often used for drawing angles. A set square is a try square with an adjustable slide.
It's primarily a template for drawing lines at accurate right-angles and other angles to a line, usually 30º / 60º and 45º for standard set-squares. It's also used for drawing parallel lines. Adjustable set-squares allow you to set off other angles.
A circle and perpendicular lines can be constructed using the given tools.