What is the principal square root of 144?

Correct answer: 12

Explanation: ✅ Correct Answer: A) 12 📚 Explanation: Step by step solving: 1. We are looking for a number $x$ such that $x$ × $x$ = 144. 2. Testing the options: 12 × 12 = 144. 3. Therefore, $\sqrt{144}$ = 12.