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

Answer:

A) Rational.

Step-by-step explanation:

We have been given a real number $\sqrt{1.21}$. 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:

$\sqrt{1.21}=1.1$

We can write 1.1 as fraction as shown below:

$1.1=\frac{11}{10}$

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