The answer is 16 ft because 6 ft tall over 4 feet 6 inches (4.5) is equal to x (tree's height) over 12 ft. You cross multiple and get 72 = 4.5x then you take 72 and divide by 4.5 to get the tree's height

6.25 is probably the answer
Recallin that, the diameter is twice as long as the radius, namely the radius is half the diameter, so, if the diameter is doubled, the radius is also doubled.

notice, the new volume is 4 times (πr² h), namely 4 times the original.
Answer:
Really?
Step-by-step explanation:
Ok....................