82 = 8 x 8 = 64
92 = 9 x 9 = 81
Since 72 is in between these answers 72 is not square.
(The square root of 72 = 8.485281374...)
There is no whole number which when multiplied by itself gives an answer of 72.
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72 square feet equates to about 6.7 (6.68901888) square meters.
The square root of 72 is equivalent to 6 times the square root of 2.
72 square meters
6 square feet = 864 square inchesYou can fit 72 square inches into that 12 times.
72 square meters = 775 square feet.