How do you find the area of a circle in terms of pi if the diameter is 2.1m?
1 Answer
Sep 8, 2015
The area of the circle is
Explanation:
The formula for the area of a circle is:
You can't use this formula directly, because you're given the diameter, not the radius.
The radius of a circle is half of the diameter, so we divide the diameter by
Since the radius is
The area of the circle is