The formula for the area of a circle is pi multiplied by the radius of the circle squared. The radius of the circle is the length of a straight line stretching from the center of t...
The formula for finding the area of a circle is A=(pi)R^2.
R is the radius of the circle.
The area of a disk, more commonly called the area of a circle, of radius r is equal
to πr<sup>2</sup>. Here the symbol π (Greek letter pi) denotes the constant ratio of the ...
Area of a circle is presented in this interactive lesson from Math Goodies.
You have a cut that goes from the center out to the edge in both directions, and it is important that it does come from the center of the circle
. We are going to use 45 degrees as the angle of the cut of the slice and we want to know what angle do I need to cut the sma... More »
In this example, we solve for the area of a circle when given the diameter. If you
recall, the diameter is the length of a line that runs across the circle and through ...
Practice area of a circle with Khan Academy's free online exercises.
Area of a circle, formula for area explained with examples, pictures, interactive
examples and quiz.
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": ...
How to Calculate the Area of a Circle. Follow these steps to find the area of a
circle. You will also learn how to find the area of a sector, which is a slice of a