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# Calculate area of sector of circle

## ( Equivalent to: surface area of sector of circle )

In next fields, kindly type the dimensions of your shape in the text box under title [ Unknowns: ]. After you type your value, click "CALCULATE" button; the answer will be automatically calculated and displayed in the text box under title [ Answer: ]. Also, you will be able to animate your shape through buttons under the below figure.

## How to Calculate Area Of Sector Of Circle

### Example: What is the area of sector of circle with radius = 18 units and angle = 129 units?

As;

area of sector of circle = π*(radius)2*angle/360

By substituting the above given data in the previous function;

(i.e.) = π*(18)2*129/360

### Practice Question: Calculate area of sector of circle for the following problems:

N.B.: After working out the answer of each of the next questions, click adjacent button of see the correct answer.

( i ) radius = 11 units and angle = 113 units

( ii ) radius = 15 units and angle = 97 units

( iii ) radius = 7 units and angle = 99 units

References
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