| A | B |
|---|
| Construction Line | Thin lines that serve as guides while sketching or drawing. |
| Depth | The distance from front to back. |
| The distance from front to back. | Drawings or printed information that contains instructions for assembling, installing, operating, and servicing. |
| Edge | The line along which two surfaces of a solid meet. |
| Ellipse | A regular oval shape, traced by a point moving in a plane so that the sum of its distances from two other points is constant, or resulting when a cone is cut by an oblique plane which does not intersect the base. |
| Freehand | Done manually without the aid of instruments such as rulers. |
| Grid | A network of lines that cross each other to form a series of squares or rectangles. |
| Height | The measurement of someone or something from head to foot or from base to top. |
| Hidden Line | A line type that represents an edge that is not directly visible, because it is behind or beneath another surface. |
| Isometric Sketch | A form of pictorial sketch in which all three drawing axes form equal angles of 120 degrees with the plane of projection. |
| Line | A continuous extent of length, straight or curved, without breadth or thickness; the trace of a moving point |
| Line Conventions | Standardization of lines used on technical drawings by line weight and style. |
| Line Weight | Also called line width. The thickness of a line, characterized as thick or thin |
| Manufacture | To make something, especially on a large scale using machinery. |
| Measurement | To make something, especially on a large scale using machinery. |
| Multiview Drawings | Views of an object projected onto two or more orthographic planes. |
| Object Line | A heavy solid line used on a drawing to represent the outline of an object. |
| Oblique Sketch | A type of sketch involving a combination of a flat, orthographic front with depth lines receding at a selected angle, usually 45 degrees. |
| Orthographic Projection | A method of representing three-dimensional objects on a plane having only length and breadth. Also referred to as Right Angle Projection. |
| Perspective Sketch | A form of pictorial sketch in which vanishing points are used to provide the depth and distortion that is seen with the human eye. |
