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Square root of 217 for apex
The square root of a negative number cannot be expressed with integers. The square root of a negative number is always imaginary.
10.95445Square Root of 120The square root of 120 is 10.954, but it is easier to say "square root of 120." You could also reduce itSQRT(120) = SQRT(12) * SQRT(10) = [SQRT(4)*SQRT(3)] * [SQRT(5) * SQRT(2)] =2 * SQRT(3) * SQRT(5) * SQRT(2)It is common to reduce large numbers under the radical to a string of factors having prime numbers under the radicals.
between 10 and 11
There are 144 square inches in one square foot, so there are 17,280 square inches in 120 square feet.