Question

The diameter of a circle is 8 mm. What is the circumference of the circle?a.) 25 and 1/7?b.) 50 and 2/7?c.) 11/28?d.) 19 and 1/4?

Answer 1

To answer this question we will use the following formula for the circumference of a circle:

$C=diameter\times\pi.$

Therefore:

$C=8mm\times\pi.$

Simplifying the above result we get:

$C\approx25.13274123mm$

Now, notice that:

$25.13274123\approx25\frac{1}{7}.$

Answer: Option A.