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Sergio039 [100]
3 years ago
15

Find the circumference of the coin. Use 3.14 or 22/7 for pi. Remember to have the correct units.

Mathematics
1 answer:
FinnZ [79.3K]3 years ago
6 0

Answer: 12.56 cm

Step-by-step explanation:

Pi looks like this <em>π or 3.14 or 22/7</em>

A formula for circumference is: <em>C = 2π r</em>

<em>The radius or r listed in the diagram is 2cm. </em>

1) Plug r into the equation...

<em>C = 2π 2</em>

<em>2) Simplify the equation</em>

<em>C = 4π</em>

<em>3) You can insert 4π to be exact in a calculator or do 4 x 3.14 (its still the same thing but you have to round if you are using this π)</em>

However both answers come out to be 12.56

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