Online geometry calculator to calculate the area of the circular ring (annulus) using inner and outer radius values.
Formula:
Annulus = π × (R - r) × (R + r)
where,R = outer radius,
r = inner radius,
π = 3.142857142857143
Area of a Circular Ring (Annulus) Calculator
Calculate Area of Circular Ring using Inner, Outer Radius
R = outer radius,
r = inner radius,
π = 3.142857142857143