Answer:
76 feet
Explanation:
based on the looooooong txt, the building n tree form two similar right-angled triangles w the rope as the hypothesis.
tree is halfway between stake and bldg so stake-to-bldg = 2 x stake-to-tree
as the triangles are similar, their sides are in the same ratio
bldg height = 2 x tree height
= 2 x 38
= 76 feet tall