6241 is the perfect square of 79. Hence 8 should be subtracted.
1
Kaushtubhi answered this
8 should be subtracted
so the number becomes 6241 and its sqroot is 79
0
Khubi Jain answered this
The ans is 159 As the perfect square of 79 is 6241 and the perfect square of 80 is 6400 after subtracting their squares is the result we get is 159 hence the answer is 159