Area of a circle is calculated by A=2*p*r where A represents the circle's area and r is the radius of the circle.
The area of a circle is pi times r squared.
The base of a cylinder is a circle. So we can use the area formula for a circle. Area = πr2 where r is the radius of the circle, and pi is the ratio of the circumference of the circle to its diameter.
A=πr2Plug in the radius. Do the math.
you use pi to calculate the area or circumference of a circle
area of a circle (A), radius of circle(R): A=R^2
Pi in math is use to find the circumference or area of a circle.
That's the formula for the area of a circle.
well..... it could be the area of a circle and many other things (well shapes)
Pi is related to the area of a circle because it just is. It is closely related to it in math, and to find the circumference (PI 3.14), you must know the area or the diameter.
Here is the formula for area (you do the math) pi = 3.14 r = radius Area = pi * r2
Knowing the area of a circle which is pi times radius squared will help you to find other properties of the circle
Archimedes discovered how to work out the area of the circle, and he also discovered pi.