Is the square root of 121 an irrational number or rational

Square root of 121 is a rational number.

Solution:

Given

We need to find the given data   an irrational or rational number

We can solve the problem by following the below steps:

Rewrite 121 as 11 × 11

So the given data can be written as

Substitute this in above step.

Square root and square gets cancelled

The square roots of square numbers are rational.So therefore, is rational numbers.

i believe the correct answer is b.