11.5 inches for a 23-inch diameter circle. If you meant the circumference is 23 inches, then the radius would be 3.6606 inches.
12 inch
2 inches. the radius is half of the diameter
6 inch
It is customary to call a circle a 38 inch circle if its diameter is 38 inches. If that is the case, the radius = diameter/2 = 19 inches.
The area of a circle is calculated using the formula A = πr^2, where r is the radius of the circle. For a 12-inch circle, the radius is half of the diameter, so the radius is 6 inches. Therefore, the area of the 12-inch circle is A = π(6)^2 = 36π square inches. Similarly, for a 9-inch circle, the radius is 4.5 inches, so the area of the 9-inch circle is A = π(4.5)^2 = 20.25π square inches.
The answer depends on whether the 23 inch refers to its radius or diameter.
Circumference of a circle: 2*pi*radius or diameter*pi
A circle with a 12 inch diameter has a 6 inch radius.
Area of circle = pi x r x r where r is the radius. You do not specify if 23 inch is the diameter or radius of the circle. Anyway pi = 3.1415 so plug in the value of the radius in the formula above and you will get the area in square inches. Then divide that by 144 to get area in square feet.
The radius of a circle with a 14.5 inch circumference is 2.15 inches
A four-inch radius circle has an area of about 50.27 square inches.
A circle with a radius of 23 units has an area of 1,661.9 square units.
12 inch
1 inch
The radius of a circle is half the diameter, so the radius of a 6 inch diameter circle is 3 in.
radius of 31 inches
The Diameter of a Circle is twice the Radius.thus for a 52 inch Diameter Circle the Radius will be 52/2=26 inches.