1
It shows the properties of an edge.
2
a line that can not be seen.
3
the three axes are separated by the same angle of 120º
4
it consists of two perpendicular axes and a third axis is at an angle of 135º
5
Drawing naturally, without any instrument being used.
6
to make bigger
7
To make smaller
8
the distance from the top to the bottom of something.
9
The line that show the limit of an object.
