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Earn +20 ptsQ: What is the formula for area when you know the diameter?
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How do you figure the area of a circle if you know the diameter?
The formula for the area of a circle is: area = pi x radius2. The radius is half the diameter.
How do you find the radius and diameter of the circle if you know the area?
Area of Circle = pi (radius)2 So , using this formula we can find the radius and also the diameter. Diameter = 2(radius)
What is the formula for the area of a circle with a diameter?
The general formula for the area of a circle is pi times the radius squared. The radius is half the diameter, so the area is pi times half the diameter times half the diameter again.
What is the formula to find the radius?
It depends on the information that you do have. If you know the diameter, the circumference or the area the equations are relatively straightforward.
What is the formula to find the area of a circle with the diameter in it?
Area = Pi(d/2)2 where d = diameter
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