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Question

If a circle has a diameter of 4 inches, what is the circumference?


Solution

$$c=12.56$$
Explanation:
The circumference of a circle is given by 
$$c=πd$$
Where $$c$$ is the circumference, π is a number and its approximate value is $$3.14$$ and $$d$$ is its diameter.
$$⇒c=π4=3.14\times4=12.56$$ inches
$$⇒c=12.56$$ inches

Mathematics

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