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

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

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Answer 1 · 2016-01-07T20:00:35

$c = 12.56$ $c=12.56$

Explanation:

The circumference of a circle is given by
$c = π d$ $c=pid$
Where $c$ $c$ is the circumference, $π$ $pi$ is a number and its approximate value is 3.14 and $d$ $d$ is its diameter.
$\Rightarrow c = π 4 = 3.14 \cdot 4 = 12.56$ $implies c=pi4=3.14*4=12.56$ inches
$\Rightarrow c = 12.56$ $implies c=12.56$ inches

Answer 2 · 2017-11-04T08:46:35

$12.56$ $12.56$ ${in}^{2}$ $"in"^2$

Explanation:

We know that the diameter is $4$ $4$ inches. The circumference can be got by

$Circumference = π \times Diameter$ $color(blue)("Circumference"=pixx"Diameter"$

So,

$\to 3.14 \cdot 4$ $rarr3.14*4$

$\Rightarrow 12.56$ $color(green)(rArr12.56$ ${in}^{2}$ $color(green)("in"^2$

Hope that helps!!! ☺•☻

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

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