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dsp73
3 years ago
5

01:09:23

Mathematics
1 answer:
rjkz [21]3 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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