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Math PRACTICE Quizzes: age 7-12
English PRACTICE Quizzes: age 7-12
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Circumference of a Circle
Symbol:
C
Formula =
\(2 \pi r \)
.
Where,
r = the radius of the circle, and
\(\pi\)
= a constant with approximate
3.142
.
Unit of measurement
= unit, e.g
\(cm\)
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