Question

Is the real number √1.21 rational or irrational?
A) Rational
B) Irrational

Answer 1

The answer is rational. It is 1.1

Answer 2

A) Rational.

Explanation:

We have been given a real number
`√(1.21)`. We are asked to determine whether our given number is rational or irrational.

We know that an irrational number is a number that cannot be written as fraction.

Upon evaluating our given number, we will get:

`√(1.21)=1.1`

We can write 1.1 as fraction as shown below:

`1.1=(11)/(10)`

Since we can write our given number a fraction, therefore, our given number is a rational number and option A is the correct choice.