Question

A circle has a diameter of 28 mm. What is its circumference?

Use 3.14 for 1, and do not round your answer. Be sure to include the correct unit in your answer.

Answer 1

Answer: C=87.92 mm

Explanation: We can find the circumference using C=πd.

When using 3.14 for π, we will simply have C=3.14*28, which equals 87.92mm.

Answer 2

The circumference of the circle is 88mm.

The circumference (C) of a circle is calculated using the formula C=π×d, where d is the diameter. In this case, the given diameter is 28 mm.

C=3.14×28

C=87.92mm

Therefore, the circumference of the circle is 87.92 mm. This value is obtained by multiplying the diameter by the approximation of pi (3.14), and it represents the total length of the circle when measured around its outer boundary.