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Schlüsselwörter
triangle,
geometry,
angle,
shape,
colourful,
vibrant,
mathematic,
education,
learning,
graphic,
design,
visual,
aid,
teaching,
study,
angle,
measurement,
degree,
acute,
right,
isosceles,
equilateral,
scalene,
polygon,
colours,
hue,
bright,
lively,
dynamic,
contrast,
background,
transparent,
illustration,
vector,
icon,
symbol,
diagram,
chart,
graph
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