Question

The area of a circular garden is approximately 804 ft squared. What is the circumference, diameter, and radius of the garden?

Answer 1

Area of a circle is $\pi r^2$

804 = $\pi r^2$

804 / pi = r^2 

r= square root of (804/pi) which is about 16.

The radius is 16, the diameter is 32. 
The circumference is 2(pi)r = 32pi