A circle fountain has a radius of 9.4 feet. What's the fountains diamiter

18.8 feet

Step-by-step explanation:

We are given;

Radius of the fountain is 9.4 feet

We are required to determine the diameter of the fountains

We need to know that the diameter of a circle is twice the radius of the circle.

That is;

Diameter = 2r

Therefore;

Diameter of the fountain = 2 * 9.4 feet

= 18.8 feet

Thus, the diameter of the fountain is 18.8 ft