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Area of a circle of radius r = πr2

Area of circle of radius 9 In = π(9)2 = π x 81 , putting value of pi we get

= 3.14159625 x 81 = 254.46 sq. In

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Q: What is the area of a circle if the radius is 9 In?
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Related questions

What is the area of a circle with a radius of 9 ft?

A circle with a radius of 9 feet has an area of 254.47 square feet.


What happen to the area of circle when the radius is tripled?

If you triple the radius of a circle, the area will increase by 9. Area is proportional to the square of the radius.


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