Question

what is the circumference of a circle with a diameter of 28

Answer 1

Answer:

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Answer 2

Answer:

The circumference of the circle is $28\pi$.

Step-by-step explanation:

The circumference of a circle is obtained using the formula,

$Circumference = 2\pi r$

where $r$ is the radius of the circle. We also know that the diameter of a circle is twice its radius. Hence

$diameter (d)= 2\times r$

So, the formula for circumference become,

$Circumference = \pi d$

where $d$ is the diameter. Given that the diameter is 28. Hence,

$Circumference = 28\pi$

Using $\pi=3.14$, we have

$Circumference = 28\times 3.14=87.92$