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Assuming you mean a circle, use the formula for the area of a circle, which is usually expressed in terms of the radius, and solve for the radius. Then you can multiply that by two to get the diameter, since the diameter is twice the radius.

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9y ago
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9y ago

diameter =sqrt( 4A/pi)

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Q: What is the formula for finding diameter when given the area?
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Related questions

What is the formula for finding the radius?

The formula for finding the radius of a circle is circumference divided by double of pi. If area is given instead of circumference, the radius may be found by dividing the area by pi, then finding the square root of the resultant quotient. It is also equal to half of the diameter, or the diameter divided by 2.


What is the formula in finding the height of a cylinder?

The answer depends on what information you are given: volume and radius or diameter, or surface area and radius, etc.


What is the formula for finding the diameter with the area?

If Area of a circle = (2)(pi)(r), and diameter = 2r, then: diameter = 2r = Area of circle / pi, where pi = 3.14


What is the formula for finding the area of a circle when you know the diameter?

D=Diameter, pi=3.14159... Area of circle = (D/2)2 * pi


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 the formula for finding circumference and area of a circle?

Circumference of a circle is (pi * diameter). Area of a circle is (pi * r2).


What is the formula of finding the area with a given circumference?

3.14 to the 2 power


What is the formula for finding the diameter when you only have the area?

If Area of a circle = 2 * pi * rAnd Diameter = 2 * rTherefore:Diameter = 2 * r= Area of circle / piwhere pi = 3.14


What is the formula to be used if the diameter is given?

The answer depends on the formula for what: the radius, circumference, length of an arc, area, area of sector, area of segment: each one has a different formula.


What is the formula for the area of the circle given the diameter?

in place of r (radius) write d/2 where d is diameter


What is the formula for finding the area of a cone with a diameter of 20meters?

Pie(r)2 X 1/2height


What is the area of a cylinder with a diameter of 4 and radius of 7?

The given dimensions are impossible and so finding its area can't be worked out.