PI day concept. The value of PI and date
Palabras clave
pi,
mathematic,
march,
education,
geometry,
mathematic,
school,
symbol,
formula,
blackboard,
icon,
circle,
mathematical,
background,
number,
day,
science,
white,
algebra,
arithmetic,
calculus,
calculation,
drawing,
trig,
chalk,
blackboard
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