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Q: Formula to find area for circle?

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The formula to find the area of a circle is: A = pi * r2

Area of a circle = pi*radius2

The area of a circle can be found with the formula (pi)r^2

The formula to find the area of a circle is pi x the radius squared.

The formula to find area is you do the radius squared times pi or 3.14

The formula depends on the information available to you.

By using the formula: area of circle = pi*radius2

a formula is alway correct

The radius of a circle is the distance from the center to any point on the circle. The area is the space within the circle. The formula to find the area is πr2. r stands for the radius of the circle. If you want to find the radius, you can work backwards from the area or the circumference, which is the perimeter of the circle. The formula for circumference is 2πr.

Area = (pi) (R)2

Area of a circle = pi*radius squared

pi multiplied by the radius squared

In order to find the area of a sector of a circle you can use the formula below: pi*r^2 * # of degrees/ 360

the formula for the area of a circle is 3.14 x radius squared

the formula to find the area of a circle is Pi times radius squared.

-- Take the formula for the area of the circle in terms of the radius . . . A = (pi) R2-- Solve that formula for 'R'. You'll then have a formula for the radius in terms of the area,which is exactly what you're looking for.

area of sector = (angle at centre*area of circle)/360

area of a circle = pi*r2

There is none because a circle has no volume but the area of a circle is pi*radius^2

umm i think so. the formula to find the area of a circle is A=r^2+pi

In order to find the diameter of a circle if you have the area is to rearrange the formula for the area of a circle to put diameter as the unknown, like so: PIE*d = Area of a Circle d = (Area of a Circle) / PIE Therefore if the area of your circle is 40cm, 40/PIE = 12.73cm and that's the diameter.

The formula for double the area of a circle

If the radius of the circle is R, then the area of the whole circle is Ï€R2 So the area of the semicircle is 0.5*Ï€R2

Area formula for circle= --,,- r 2

A = pi x radius2