Answer:
y = 16.3
Step-by-step explanation:
Based on the altitude theorem of a right triangle, we have:
14 = √(12*y)
Square both sides
14² = 12*y
196 = 12y
Divide both sides by 12
196/12 = 12y/12
16.3 = y
y = 16.3 (nearest tenth)
