Cone – the figure received by means of association of beams which proceed from one point (top) and pass through a flat surface. This figure it is also possible to call a body which can be received at rotation of a rectangular triangle around one leg. It is already possible to call a pyramid a cone which is a polygon.
Instruction
1. For a start on a leaf to paper of a format necessary to you carry out an axis of symmetry of necessary height which represents the line from which two sides the image specularly is reflected.
2. Mark cone height by means of a point on the received axis. For the lower part of a cone carry out a horizontal which will designate the beginning of a figure.
3. By means of strokes lay off equal distance from two parties of an axis on the lower bound. So you represent basis width.
4. Further draw an ellipse. Four points of an oval can be found easily if to carry out through the center of a square in the long term diagonals which will connect points 2-4 and 1-3. These lines will be are parallel to the parties of a square and will pass through its center (in this case line 2-4 will be parallel). Now try to draw an oval which on perimeter passes through all 4 points.
5. Draw slanting lines from the received two opposite sides of the basis to a point of the center which is designated on a circle.
6. Erase lines of construction and distant border at an ellipse. The cone can be considered nacherchenny.
7. In the drawing do not forget to place the falling shadow depending on the necessary lighting. Shade a cone. The top part has to be more dark lower, at the same time light and shade needs to be finished a reflex. The falling shadow has to begin with that place where also the subject shadow begins.