Transparent plastic protractor
Palabras clave
nobody,
2000,
plastic,
protractor,
ruler,
transparent,
measurement,
isolated,
instrument,
school,
trig,
angle,
equipment,
scale,
white,
centimetre,
number,
education,
tool,
mathematic,
mathematic,
single,
shape,
drawing,
supply,
measure,
geometry,
object,
work,
draw,
geometric,
object,
mathematical,
background,
engineering,
line,
symbol,
geometrical,
degree,
circle,
semitransparent,
semicircle
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