It is 2*18 = 36 inches.
If the radius is 18 feet - then the diameter is 36 feet. The circumference measurement is irrelevant !
lol, 9 inches. 18" is the diameter, so...
A circle with a 12 inch diameter has a 6 inch radius.
Circumference of a circle: 2*pi*radius or diameter*pi
The radius of a 2 inch pipe is half of its diameter. Therefore, the radius would be 1 inch.
All depends what you mean by 18 inches, is that the circumference, the diameter or the radius
The radius of a circle is half the diameter, so the radius of a 6 inch diameter circle is 3 in.
The radius of a circle is always half of the diameter. Therefore, if the diameter of a circle is 36 units, the radius would be half of 36, which is 18 units. The formula for finding the radius from the diameter is radius = diameter / 2. So, in this case, the radius would be 18 units.
The Diameter of a Circle is twice the Radius.thus for a 52 inch Diameter Circle the Radius will be 52/2=26 inches.
12 inch diameter(also 6 inch radius).
The diameter of a circle is twice the radius. A circle with a radius of 9 would have a diameter of 18. (9*2=18).
2 inches. the radius is half of the diameter