pi times diameter. so about 3.14 times 9 feet= about 28.26
Chat with our AI personalities
A circle with a diameter of 9 feet has a circumference of about: 28.27 feet (diameter x Pi = circumference).
Area of circle: pi times 9 squared = 254.469 square feet rounded to 3 decimal places
9 feet.
Diameter of circle: 9/pi = 2.865 feet rounded to 3 d.p.
9*pi or 2*pi*4.5