Calculate Circle Area: Given Radius of 3 Units and Center O

O is the center of the circle in the diagram below.

What is its area?

333OOO

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Step-by-step video solution

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00:00 Find the area of the circle
00:03 We will use the formula to calculate the area of a circle
00:08 We will substitute the radius value according to the given data and solve to find the area
00:25 And this is the solution to the question

Step-by-step written solution

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1

Understand the problem

O is the center of the circle in the diagram below.

What is its area?

333OOO

2

Step-by-step solution

Remember that the formula for the area of a circle is

πR²

We insert the known data:

π3²

π9

3

Final Answer

9π 9\pi cm²

Practice Quiz

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The center of the circle in the diagram is O.

What is the area of the circle?

555OOO

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Area of a Circle