is the radius. Let's look at some examples involving the area of a circle. In each of
the three examples below, we will use Pi = 3.14 in our calculations.
Area of a Circle. Calculator Enter the radius, diameter, circumference or area of a
Circle to find the other three. The calculations are done "live":.
Calculate the area and circumference of a circle. ... For help with using this
calculator, see the shape area help page. Return to the Shape Area section ...
The area of a circle is pi times the radius squared (A = π r²). Learn how to use this
formula to find the area of a circle when given the diameter.
Note: If you have the diameter of a circle, you can use it to find the area of that
circle. Just plug that value into the formula for the area of a circle and solve.
... by the formula: A = π r2. You can easily calculate the area of a circle in under a
minute. All you need is a calculator, a circle to measure and a tool with...
Given the radius, use this area of a circle calculator to find the area for any circle.
Area of a circle, formula for area explained with examples, pictures, interactive
examples and quiz.
Let's review what we know about the area of circles and sectors. Area (circle).
Area of sectors of circle (Sectors are similar to "pizza pie slices" of a circle.) Semi-
The Circumference is the distance once around the circle. This online circle
calculator allows you to calculate the area, diameter, circumference and sector