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Area of Annulus Formula

GoArea of Annulus given Breadth and Inner Circle Radius Formula

GoArea of Annulus given Breadth and Outer Circle Radius Formula

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Area of Annulus is defined as the area of the ring-shaped space i.e. the enclosed region between the two concentric circles. Check FAQs

A = π \cdot ({r Outer}^{2} - {r Inner}^{2})

A - Area of Annulus?r_Outer - Outer Circle Radius of Annulus?r_Inner - Inner Circle Radius of Annulus?π - Archimedes' constant?

Area of Annulus Example

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Here is how the Area of Annulus equation looks like with Values.

Here is how the Area of Annulus equation looks like with Units.

Here is how the Area of Annulus equation looks like.

201.0619 = 3.1416 \cdot (10^{2} - 6^{2})

201.0619m² = 3.1416 \cdot ({10m}^{2} - {6m}^{2})

201.0619 = 3.1416 \cdot (10^{2} - 6^{2})

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Area of Annulus Solution

Follow our step by step solution on how to calculate Area of Annulus?

FIRST Step Consider the formula

A = π \cdot ({r Outer}^{2} - {r Inner}^{2})

Next Step Substitute values of Variables

∴

A = π \cdot ({10m}^{2} - {6m}^{2})

Next Step Substitute values of Constants

∴

A = 3.1416 \cdot ({10m}^{2} - {6m}^{2})

Next Step Prepare to Evaluate

∴

A = 3.1416 \cdot (10^{2} - 6^{2})

Next Step Evaluate

∴

A = 201.061929829747m²

LAST Step Rounding Answer

∴

A = 201.0619m²

Area of Annulus Formula Elements

Variables

Constants

Area of Annulus

Area of Annulus is defined as the area of the ring-shaped space i.e. the enclosed region between the two concentric circles.

Symbol: A

Measurement: AreaUnit: m²

Note: Value should be greater than 0.

Formulas to find Area of Annulus

Outer Circle Radius of Annulus

Outer Circle Radius of Annulus is the radius of a larger circle of the two concentric circles that form its boundary.

Symbol: r_Outer

Measurement: LengthUnit: m

Note: Value should be greater than 0.

Formulas to find Outer Circle Radius of Annulus

Inner Circle Radius of Annulus

Inner Circle Radius of Annulus is the radius of its cavity and it is the smaller radius among two concentric circles.

Symbol: r_Inner

Measurement: LengthUnit: m

Note: Value should be greater than 0.

Formulas to find Inner Circle Radius of Annulus

Archimedes' constant

Archimedes' constant is a mathematical constant that represents the ratio of the circumference of a circle to its diameter.

Symbol: π

Value: 3.14159265358979323846264338327950288

Other Formulas to find Area of Annulus

Go Area of Annulus given Breadth and Inner Circle Radius

A = π \cdot b \cdot (b + 2 \cdot r Inner)

Go Area of Annulus given Breadth and Outer Circle Radius

A = π \cdot b \cdot (2 \cdot r Outer - b)

How to Evaluate Area of Annulus?

Area of Annulus evaluator uses Area of Annulus = pi*(Outer Circle Radius of Annulus^2-Inner Circle Radius of Annulus^2) to evaluate the Area of Annulus, The Area of Annulus formula is defined as the amount of space occupied by the ring-shaped space i.e. the enclosed region between the two concentric circles. Area of Annulus is denoted by A symbol.

How to evaluate Area of Annulus using this online evaluator? To use this online evaluator for Area of Annulus, enter Outer Circle Radius of Annulus (r_Outer) & Inner Circle Radius of Annulus (r_Inner) and hit the calculate button.

FAQs on Area of Annulus

What is the formula to find Area of Annulus?

The formula of Area of Annulus is expressed as Area of Annulus = pi*(Outer Circle Radius of Annulus^2-Inner Circle Radius of Annulus^2). Here is an example- 201.0619 = pi*(10^2-6^2).

How to calculate Area of Annulus?

With Outer Circle Radius of Annulus (r_Outer) & Inner Circle Radius of Annulus (r_Inner) we can find Area of Annulus using the formula - Area of Annulus = pi*(Outer Circle Radius of Annulus^2-Inner Circle Radius of Annulus^2). This formula also uses Archimedes' constant .

What are the other ways to Calculate Area of Annulus?

Here are the different ways to Calculate Area of Annulus-

Area of Annulus=pi*Breadth of Annulus*(Breadth of Annulus+2*Inner Circle Radius of Annulus)
Area of Annulus=pi*Breadth of Annulus*(2*Outer Circle Radius of Annulus-Breadth of Annulus)

Can the Area of Annulus be negative?

No, the Area of Annulus, measured in Area cannot be negative.

Which unit is used to measure Area of Annulus?

Area of Annulus is usually measured using the Square Meter[m²] for Area. Square Kilometer[m²], Square Centimeter[m²], Square Millimeter[m²] are the few other units in which Area of Annulus can be measured.

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Area of Annulus Formula

​GoArea of Annulus given Breadth and Inner Circle Radius Formula

​GoArea of Annulus given Breadth and Outer Circle Radius Formula

Area of Annulus Example

Area of Annulus Solution

Area of Annulus Formula Elements

Other Formulas to find Area of Annulus

How to Evaluate Area of Annulus?

FAQs on Area of Annulus

Variable Name

GoArea of Annulus given Breadth and Inner Circle Radius Formula

GoArea of Annulus given Breadth and Outer Circle Radius Formula