Sam said the squareroot of a rational number must be a rational number. Jenna di
ID: 3113649 • Letter: S
Question
Sam said the squareroot of a rational number must be a rational number. Jenna disagreed. She said that it is possible the squareroot of a rational number can be irrational. Who is correct and why? Jenna is correct because all squareroot s are irrational numbers. Sam is correct because all squareroot s of rational numbers are rational. An example is squareroot 121 = 11. Jenna is correct because not all squareroot s are rational. An example is squareroot 2 = 1.414213... Sam is correct because the properties of squareroot s state that the squareroot of a rational number is a rational numberExplanation / Answer
Jenna is correct.
It is not necessary that square root of all the numbers can be expressed as the ratio of integer values.
The example given in the option C is correct. There are multiple such example - square root of 2, 3, 5 etc.