Answer:
87 3/11 ft
Step-by-step explanation:
The shadows are presumed to be in proportion, so we have ...
(object height)/(shadow length) = (6 ft)/(11 ft) = (tree height)/(160 ft)
Multiplying by 160 ft, we find ...
(tree height) = (6 ft)(160/11)
(tree height) = 87 3/11 ft
