Q: What is the radius of diameter 9 feet?

Write your answer...

Submit

Still have questions?

Continue Learning about Math & Arithmetic

If the radius is 8 feet then the diameter will be 16 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.

If the radius is 18 feet - then the diameter is 36 feet. The circumference measurement is irrelevant !

Related questions

You should say if the 9 feet is a radius, diameter or circumference.....if radius then 254.47 feet

9'

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.

Radius is half the diameter, so a radius of 50 feet the diameter will be 100 feet.

If the radius is 8 feet then the diameter will be 16 feet.

4 feet. The radius is half the 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

Diameter is 16. The radius is half its diameter

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).

Circumference of a circle is: 2*pi*radius or pi*diameter

Diameter is twice the radius, so 18 feet.

Diameter = 2 * radius So in this case, 40 feet.