The square root of 240 is irrational; the closest number depends upon how many decimal places you want. If you want the closest whole number then: √240 = 15.49193... → closest whole number is 15.
3
12 (122 = 144, the closest square root)
39
The square root of 50 is approximately 7.071. The whole number closest to this value is 7. This can be determined by recognizing that the square root of 49 is 7, and 50 is just slightly larger than 49.
The square root of 15 being 3.87 the closest whole number would be 4
Square root of 59 is 7.681145748 Nearest whole number would be 8
The square root of 240 is irrational; the closest number depends upon how many decimal places you want. If you want the closest whole number then: √240 = 15.49193... → closest whole number is 15.
The nearest whole number would be 3. The square root of 8 is approximately 2.82842712474619
3
6
8
4
15
12 (122 = 144, the closest square root)
39
No. Such a number is referred to as a perfect square. The closest perfect square to 23 is 25, the square root of which is 5.