multiply 7 x 9 which is 63 sq feet
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9ft x 9ft, or 81ft2 is the same as 24.6888 meters2.
15x9 = 135 squared feet
the circumfrence of a circle is pi times it's radius squared.
Ah, what a happy little question! To convert feet to square meters, you first multiply the two dimensions (12ft x 9ft) to get the total square footage. Then, you can convert square feet to square meters by multiplying by 0.0929. So, 12ft x 9ft is 108 square feet, which is approximately 10.03 square meters. Just a few simple brushstrokes, and you've created a lovely conversion!
250 sq.ft. is the area of the circle. Apply the Area eq'n A = pi r^2 Algebraically rearrange r^2 = A/ pi r = sqrt(A/pi) Substituting r = sqrt( 250/3.141592....) r = sqrt(79.57747165...) r = 8.920620581.... ft. r = 8 ft 11.047... inches. ~ 9ft