What is the circumference of a circle with a radius of 9 cm?

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22
Jan 6, 2016

Answer:

#=56.52cm#

Explanation:

The formula for the circumference of a circle is
#=2 pi r#

The radius #=9 cm#

circumference #=2 pi r#

#=2 xx 3.14 xx 9#

#=6.28 xx 9#

#=56.52cm#

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