Question

The diameter of a circle is 2 feet. What is the circumference?Give the exact answer in simplest form. ____ feet. (pi, fraction)

Answer 1

2π feet.

Step-by-step explanation:

Given a circle with diameter, d, its circumference:

`C=\pi d`

Substitute 2 for the diameter, d:

`C=2\pi\text{ ft}`

The circumference of the circle is 2π feet.