it is 4.5
If the radius is 8 feet then the diameter will be 16 feet.
The radius is half of the diameter. If the diameter is 36 feet, then the radius would be 36 feet divided by 2, which equals 18 feet. Therefore, the radius is 18 feet.
It is not clear whether the circumference is 9 feet and you want the radius or diameter, or you have either the radius or diameter - which is 9 ft - and you want the circumference. The formulas are Circumference = 2*pi*r = 2*pi*d where r is the radius, d the diameter, and pi is the mathematical constant approximated by 3.14159
Diameter = 2 * radius So in this case, 40 feet.
The radius would be 4 feet I know this because the diameter is always 2x the size of the radius.
You should say if the 9 feet is a radius, diameter or circumference.....if radius then 254.47 feet
9'
Radius is half the diameter, so a radius of 50 feet the diameter will be 100 feet.
Since your circle has a diameter of 9 feet (the definition of a "9 by 9" circle), the radius is half of that distance. In this case, your radius is 4.5 feet or 54 inches.
If the radius is 8 feet then the diameter will be 16 feet.
4 feet. The radius is half the diameter.
Diameter is 16. The radius is half its diameter
It is not clear whether the circumference is 9 feet and you want the radius or diameter, or you have either the radius or diameter - which is 9 ft - and you want the circumference. The formulas are Circumference = 2*pi*r = 2*pi*d where r is the radius, d the diameter, and pi is the mathematical constant approximated by 3.14159
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).
Diameter is twice the radius, so 18 feet.
Diameter = 2 * radius So in this case, 40 feet.
Circumference of a circle is: 2*pi*radius or pi*diameter