42 is 16, less than 20
52 is 25, more than 20.
so, 20 is not a perfect square, and does not have an integral square root.
But, the square root of any integer is either an integer itself, or irrational.
So, square root 20 is irrational
Try taking the square root. The square root of a positive integer can only be: * A whole number, in which case it is of course rational, or * Irrational.
It is a rational number.
20 is not the square of an integer, the square root of 20 is approximately equal to 4.472.
20 times the square root of 2
There is no square root of -75. If it's 75, that is 5 square root 3.
The square root of 20 is an irrational number
Try taking the square root. The square root of a positive integer can only be: * A whole number, in which case it is of course rational, or * Irrational.
is the square root f 20 irrational or rational
No.
The square roots of some numbers are rational: eg sqrt(4) = 2, sqrt(0.04) = 0.2, sqrt(400) = 20 The square roots of some numbers are irrational eg sqrt(2) = 1.414 (approx), sqrt(0.02) = 0.1414 (approx), sqrt(200) = 14.14 (approx) The square roots of negative numbers are neither rational nor irrational, but imaginary.
sqrt(20)= 4.472135955At nine places and looking very irrational to me!
No.
The square root of 20 can be found using a calculator or by using the approximation method. The exact value is √20 ≈ 4.47.
20 squared is 400 which is a rational number
It is a rational number.
20 squared is 400 which is a rational number
Yes because it can't be expressed as an exact fraction