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2 years ago

01:09:23

Mathematics

1 answer:

rjkz [21]2 years ago

5 0

Answer:

The formula for circumference of a circle is

2pi,R.

In which R= radius. Then we Insert 18 in for the circumstances.

so, 18=2πr

then solving for r

18=2

÷. ÷

2. 2

R = 9,,

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copy dot flip

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