Question

Hi, I need help with the EXPLANATION of this question. I have the right answer, but I am unsure why. 50 POINTS

Answer 1

Explanation:

Using Pythagoras' Theorem, we have

x² + 10² = (12√3)²

Therefore x² = (12√3)² - 10²

= (144)(3) - (100) = 332.

=> x = √332 = 2√83. (B)