Area = pi * radius^2. radius = diameter / 2, so radius of this circle is 3.
Area = 9 * pi (take your favorite value of pi: 3.1416....)
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The area is 7.068 units2
The area of a 6 unit circle is: 28.27 square units.
Area of a circle = pi*radius2
A 6-inch circle has an area of: 28.27 square inches.
area of circle is πr² (3.14)(6)² 3.14 * 36 = 113.45 cm² ■