It's not the square root of 77.
Google this (87)^(1/2)
between 76 and 77 76² = 5,776 77² = 5,929 76.36753236814713
sqrt(77)/9 cannot be simplified.
The square root of 49 is 77, because, 7 x 7 = 49.
87
The square root of 87 is: ± 9.327379
The square root of 77, written √77 is ± 8.775 (3 dp)roughly 8.775
The square root of 7569 is 87.
Square root of 87 is 9.3. Which is rounded to the nearest tenth.
Square root of 693 = 3 square root of 77 or 26.325
± 77
77 is not the square of an integer. Rounded to five decimal places, its square root is equal to 8.7750.
8.78
Irrational
You cannot be serious ... Just in case you are, it's 87.
Google this (87)^(1/2)
between 76 and 77 76² = 5,776 77² = 5,929 76.36753236814713