accuracy
angle
background
centimeter
circle
curve
degree
design
drafting
drawing
education
engineer
engineering
equipment
gage
geometric
geometry
illustration
instrument
isolated
isometric
line
math
mathematical
mathematics
measure
measurement
millimeter
number
plan
plastic
protractor
ruler
scale
school
semicircle
shape
sketching
tool
translucent
transparent
trigonometry
white
work