object line
show the visible line ______
hidden line
shows hidden detail ——-
dimension line
shows a dimension
Extention line
shows start and finish of measurement ||
diameter
shows a diameter measurement 🚫(line should be another way)
center and symmetry lines
shows the center of a circle from the side view ----_
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what is 1:1
Full size: used to show the actual measurements of the object 1:1
what is 1:2
Reduction: used to show a large object on paper 1:2 (2 times bigger irl)
what is 3:1
Enlargement: used to show a small object on paper 3:1