Final answer:
Without additional information on the tree's growth over time, we cannot determine its current height.
Step-by-step explanation:
A tree's height can be measured using a measuring tape. In this case, the question asks how tall the tree is now and provides the starting height of the tree. To find the current height, we need to know the initial height and any additional growth over time. This information is missing from the question, so without further details, we cannot determine the current height of the tree.