- radius of the outer circle
- radius of the inner circle
3,14
Calculate the Area of an annulus if given radii of the circles ( A ) :
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Area of plane shapes
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How to calculate the area of an annulus
Area of plane shapes
- Area of a triangle
- Area of a right triangle
- Heron's formula for area
- Area of an isosceles triangle
- Area of an equilateral triangle
- Area of a triangle - "side angle side" (SAS) method
- Area of a triangle - "side and two angles" (AAS or ASA) method
- Area of a square
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- Area of a circle
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- Area of an annulus
- Area of a sector of an annulus
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