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Area of circle = pi*(radius)2

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Q: Why do you use the radius in the formula of finding the area of a circle?
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Related questions

What is formula ofr finding area of a circle?

Area of a circle = pi*radius squared


Formula for finding the area if you have radius?

Area of a circle = pi*radius2


What is the formula for finding an area of a circle?

The area of a circle with a known radius can calculated using the following formula where r is the radius : A = Pi(r)2


What is Pi R Squared?

The formula to get the area of a circle ("R" being the radius of the circle). Radius means the distance from the center of the circle to the edge.It means pi times radius squared which is the formula for finding the area of a circle.


What is the area of a circle if the radius is 18cm?

Using 3.14 as Pi the area of circle is: 1017.36


What is the formula of finding the area of a circle?

Pi * R squared, where R is the radius of the circle in question


What is the mathematical formula for finding the radius of a circle?

To calculate this you will need the diameter of the circle. The formula is: diameter/2*pi If you don't know the diameter you can also use the area of the circle: Sqrt(Area/pi) = radius


What is pr2?

It is the formula for finding the area of a circle which means: pi times radius squared


What is pi times the radius sq?

pi*radius2 is the formula for finding the area of a circle.


What does the formula Pi r2 mean?

It is the formula used in finding the area of a circle which is pi times radius squared


Area of circle radius 2.5?

The formula for finding the area of a circle is A= pi r2. Square the radius then multiply it by pi. For your instance, 2.5 squared is 6.25. 6.25 x pi= 19.634... The area of a circle with the radius of 2.5 is 19.634...


Formula for finding area of circle?

π x r x 2 where R=Radius