36 pi squinches
A 12-inch circle has an area of about 113.1 square inches.
The area of a circle whose diameter is 12 inches is: 113.1 square inches.
= 6.14 Area of Circle - Area of Square r x Pi - side x side
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.
The area of a circle with diameter equals 12 inches to the nearest whole number is: 113 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 circle with a diameter of 12 inches has an area of ~113.1 square inches.
Area of a 12-inch circle: 113.1 square inches.Area of a 16-inch circle: 201.1 square inches.
A circle with a 12 inch diameter has a 6 inch radius.
About 113.1 square inches.
Area of the circle: pi*6 squared = 36*pi square inches
12 inch diameter(also 6 inch radius).
If the diameter of a circle is 12 inches the circumference is: 37.7 inches (diameter x Pi = circumference).
A 12-inch circle has an area of about 113.1 square inches.
The circumference of a circle is given by Circumference = pi x diameter. The area of a circle is given by Area = pi/4 x diameter2. Thus for a circle with circumference c = 12 in. The area will equal a = 11.459 in2.
A 12 mm circle has a diameter of 12 millimeters, which is slightly less than half an inch (approximately 0.47 inches). The radius, which is half the diameter, is 6 mm. In terms of area, the circle has an area of about 113.1 square millimeters. This size is comparable to the diameter of a large button or a small coin.