An annulus has a large radius (R) of 12
It has a small radius (r) of 5
Calculate the Area and equation
Annulus Area Formula:
A = π(R2 - r2)
Plug in A = 12 and r = 5
A = π(122 - 52)
A = π(144 - 25)
A = 119π ~ 373.8495
Annulus Equation
Assume a radius of (0,0)
r2 ≤ x2 + y2 ≤ R2
25 ≤ x2 + y2 ≤ 144
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What is the Answer?
25 ≤ x2 + y2 ≤ 144
How does the Annulus Calculator work?
Free Annulus Calculator - Calculates the area of an annulus and the equation of the annulus using the radius of the large and small concentric circles.
This calculator has 2 inputs.
This calculator has 2 inputs.
What 1 formula is used for the Annulus Calculator?
What 3 concepts are covered in the Annulus Calculator?
- annulus
- A ring shaped object, bounded by two concentric circles
- circle
- the set of all points in the plane that are a fixed distance from a fixed point
- radius
- Distance from the center of a circle to the edge
C/2π
Example calculations for the Annulus Calculator
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