Square of 144 means 144 multiplied by 144. if you mean square root, then 12
In some countries it is still called a dozen, but others call it 12
root of 676 = 26
there is no square root of 11.
9
1.1414213562...
14
3
In a calculator pi^(1/2) = pi^(0.5) = 3.141592.....^ (1/2) = 1.772453851.... Since 'pi' is an irrational number, then the square root of 'pi' is also irrational .
6.403124237...
23
279.96