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(R^{2} - r^{2} )

Plug in A = 12 and r = 5

A = π(12^{2} - 5^{2} )

A = π(144 - 25)

A = 119π ~ 373.8495

Annulus Equation

Assume a radius of (0,0)

r^{2} ≤ x^{2} + y^{2} ≤ R^{2}

25 ≤ x^{2} + y^{2} ≤ 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.

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

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