Question

A circle's diameter is 4 feet.

What is the circle's circumference (use 3.14 for pi and round to the Nearest tenth)?

PLS HELP

Answer 1

13

Explanation:

The formula for cirmference is

C= π2 * r

we're using 3.14 as pi and r = radius.

the radius is always half of the diameter.

So in this case since the diamter is 4, the radius is 2. let's substitute these numbers.

C= 3.14 *2*2 and there your answer is 12.56 which rounded to the nearest tenth is 13.

Hope this helps :)