Not irrational, 12 squared equals 144.
20 squared is not an irrational number. 202 = 400.
If the square root of a natural number is not an integer, then it is irrational. Another way to look at it: if a natural number N falls between two perfect squares, then the square root of N is irrational.So in this case, 12 is between 9 (3 squared) and 16 (4 squared). So the square root of 12 is between 3 and 4, and also the square root of 12 is irrational.
Any number that can't be expressed as a fraction is an irrational number.
Sometimes. eg the irrational number √2 squared is 2 which is rational (2 = 2/1) eg the irrational number √(√2) squared is √2 which is irrational.
5 squared is 5*5 is 25. 25 is not an irrational number.
No, it is rational.
No because 7 squared equals 49 which is a rational number but the square root of 7 is an irrational number
20 squared is 400 which is a rational number
No because pi still remains as an irrational when squared.
No because 102 squared is 10404 which is a rational number
22=4, so no, it's not an irrational number.
No because 36 squared is 1296 which can be expressed as an improper fraction in the form of 1296/1 whereas irrational numbers can't be expressed as fractions.
Rational; 62 = 36. Any rational number that is squared is still rational.
No. Perfect squares as the squares of the integers, whereas irrational squares as the squares of irrational numbers, but some irrational numbers squared are whole numbers, eg √2 (an irrational number) squared is a whole number.
No, it is rational.
3 squared is 9 and 4 squared is 16, so the square root of any whole number between 9 and 16 will be irrational.
I don't knw all the possible numbers, but π is an example. π2 is irrational such as π.
-90 squared is rational - it is +8100. All perfect squares are not only rational but they are integers.
The square root of 14 is irrational. Three squared is 9, and four squared is 16; so square root of 14 is in-between 3 and 4.
Yes and the area of any circle is an irrational number because its area is pi*radius squared whereas pi is an irrational number.