Answer:
A) Rational.
Step-by-step explanation:
We have been given a real number [tex]\sqrt{1.21}[/tex]. 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:
[tex]\sqrt{1.21}=1.1[/tex]
We can write 1.1 as fraction as shown below:
[tex]1.1=\frac{11}{10}[/tex]
Since we can write our given number a fraction, therefore, our given number is a rational number and option A is the correct choice.
