Answer:
A
Step-by-step explanation:
Since the triangle is right use Pythagoras' identity to solve for height (h)
The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is
h² + 9² = 15²
h² + 81 = 225 ( subtract 81 from both sides )
h² = 144 ( take the square root of both sides )
h = [tex]\sqrt{144}[/tex] = 12 → A
