Area of a 12-inch circle: 113.1 square inches.Area of a 16-inch circle: 201.1 square inches.
The approximate area of a circle with a 12-inch diameter is: 113 square inches.
Area of a circle = (1/2 x diameter)2 x piArea of a 24 inch diameter circle:(12 inches)2 x 3.1416 = 144 square inches x 3.1416 = 452.4 square inches
A 72-inch diameter circle has an area of: 28.3 square feet.
A 32-inch circle has an area of 804 square inches.
Area of a 12-inch circle: 113.1 square inches.Area of a 16-inch circle: 201.1 square inches.
A 12-inch circle has an area of about 113.1 square inches.
The area of a circle that has a 12-inch diameter is: 113.1 square inches.
The approximate area of a circle with a 12-inch diameter is: 113 square inches.
A 12-inch circle has an area of 0.784 square feet.
113.1 square units.
A circle with a diameter of 12 inches has an area of ~113.1 square inches.
About 113.1 square inches.
113 1/7
Area of the circle: pi*6 squared = 36*pi square inches
A circle with a 12 inch diameter has a 6 inch radius.
If you are talking about 9 and 12 inch diameter, then divide both by 2 to get the radius. The area of a circle is pi (3.1415 is good for most calculations) multiplied by the square of the radius. So for the 12 inch circle, the radius is 6. The square of the radius is 36, and multiplying this by pi gives approximately 113.1 square inches. Now the 9 inch circle has a radius of 9/2 or 4.5. Squaring this we get 20.25, which multiplied by pi is approximately 63.6 square inches. If 9 and 12 were already the radius in the problem, just don't divide by 2 since you already have the radius.