Answer:
The diameter of the circle is 6 units.
Step-by-step explanation:
The circumference formula is Pi*(r^2), so you divide 28.26 by pi (3.14) and get 9. Then here is where the other part of the formula comes, and you get the square root of 9 which is 3. 3 is the radius, and the radius is half of the diameter. 3*2=6.
