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The area of a circle is pi * radius2. If you already have the radius squared, you just have to multiply that by pi.

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Q: How can you determine the area of a circle by using the radius squared and without finding the radius?
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Related questions

What is formula ofr finding area of a circle?

Area of a circle = pi*radius squared


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

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


Why is it impossible to square a circle?

You have to determine the value of pi squared.


When finding the area of a circle is the answer squared?

The area of a circle is measured in square units. The formula is: pi*radius2


What is pr2?

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


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.


How is pi used to determine the area of a circle?

Area of a circle equals pi (3.14) times the radius squared.


What is the algorithm for finding the area of a circle?

Find the radiusMultiply pi by the square of the radius.


What is the area of a circle if the radius of a circle is 3.7cm?

The formula for finding the area of a circle is : pi(r) squared. So, that answer would be 13.69cm multiplied by pi, which is nearest to 3.14.


How do you solve pi times radius squared?

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


What is the formula for finding the area of a circle and for finding the volume of a cylinder?

Area of a circle = (pi)r2 [Areacircle = pi time the radius squared.] Volume of a cylinder = (pi)r2h [Volumecylinder = pi times the radius squared times the height.] (This applies to a right circular cylinder. :)


What is the formula for finding the area of a circle with the diameter?

A=pi x d squared or you can get the radius by dividing by 2 and A=2 x (pi x r squared)