Area of a Circle Calculator
MathFind the area of a circle from its radius, along with its circumference and diameter.
Area
The space enclosed by the circle
Circumference
62.8319
The distance around the circle
Diameter
20.0000
The distance across the circle through its center
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Calculator Stats
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Odeh Ahwal0people find this calculator helpful
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Calculator Stats
Creators
Odeh Ahwal0people find this calculator helpful
Views
Helpful
Saved
Embeds
Math calculators
Frequently Asked Questions
What is the formula for the area of a circle?
The area of a circle equals pi times the radius squared, written as A = pi r squared.
What is the area of a circle with a 10 unit radius?
A circle with a radius of 10 has an area of about 314.16 square units.
Can area be found from the diameter instead of the radius?
Yes, since the radius is half the diameter, the area can also be written as pi times half the diameter, squared.
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