What is a "9 inch circle"? Is that the circle's diameter ?
-- The circumference of a circle is [ (pi) x (diameter)].
-- Take that formula.
-- Look up the value of (pi), either in your math book or on line.
-- Put the value of (pi) in its place in the formula.
-- Put the diameter of the circle in its place in the formula.
-- Perform the indicated operation (multiplication).
-- Bada-bing, you'll have the answer.
-- Take a moment to learn the spelling of "circumference".
Since you probably didn't understand the big words used above you should just write down 28.26 inches
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Pi (3.14) × the diameter Therefore, 3.14 x 2 = 6.28 inches
pi times diameter. so about 3.14 times 9 feet= about 28.26
8
125.6 feet
Work it out the circumfrance of a circle is pie x the diameter!