HSC Together Year 11 Maths Standard: Area of Circles and Sectors

#### Maths Standard

• Earning and Managing Money
• Formulae and Equations
• Measurement and Energy
• Relative Frequency and Probability
• Perimeter, Area and Volume
• Classifying and Representing Data
• Linear Relationships
• Interest and Depreciation
• Exploring and Describing Data
• Working with Time
• Budgeting and Household Expenses
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Back to other subjects

# Area of Circles and Sectors

### How do you find the area of circles and sectors?

The area of a circle is calculated using the formula area = pi multiplied by the radius to the power of 2. An annulus is the area between a large and small circle that has the same centre. A sector is part of a circle. This post will show you how to find the area of different types of circles and sectors in Prelim Standard Math.

### How to calculate the area of a sector and annulus

The videos below explain how to calculate the area of a sector and annulus by using the formulas.

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