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31 Ιουλ 2024 · Use this free circumference calculator to find the area, circumference and diameter of a circle.
- Arc Length
We can find the area of a sector of a circle in a similar...
- Circle
If you know the radius or diameter of the circle, the area...
- Arc Length
These are the formulas to calculate the circumference and area of a circle: c = 2πr A = πr² = πd²/4. where: c stands for circumference; r for radius; and; d for the diameter of the circle. π is a constant approximately equal to 3.14159265359 and, among other things, represents the circumference-to-diameter ratio of any circle.
22 Ιουλ 2024 · If you know the radius or diameter of the circle, the area of the circle formula is: a = πr² = π × (d / 2)². If radius and diameter are unknown, you can calculate it from the circumference: a = c² / 4π. If you are interested in calculations of some fraction of a circle, check:
6 Φεβ 2024 · Calculate the area, circumference, radius and diameter of circles. Find A, C, r and d of a circle. Given any 1 known variable of a circle, calculate the other 3 unknowns. Circle formulas and geometric shape of a circle.
Circle formulas. This calculator computes the values of typical circle parameters such as radius, diameter, circumference, and area, using various common units of measurement.
The area of circle can be calculated if we know either the radius (r) , the diameter (d), or the circumference (C) using one of the following formulas: Area = π × r 2 Area = (π/4) × d 2
Since π = C/d, where C is circumference and d is diameter, we can derive the circumference formula as follows: Circumference formula using radius. Since the diameter (d) is two times the radius (r), another circumference formula is: Circumference formula using area.
