Question

what is $sqrt{144}$?

Explanation:

Step1: Recall square - root definition

The square - root of a number \(x\), denoted as \(\sqrt{x}\), is a value \(y\) such that \(y\times y=x\). We need to find a number \(y\) for \(x = 144\).

Step2: Find the number

We know that \(12\times12 = 144\) and \((- 12)\times(-12)=144\). In the case of the principal square - root (denoted by \(\sqrt{}\)), we take the non - negative value. So \(\sqrt{144}=12\).

Answer:

12