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Suppose the angle of elevation of the to...

Suppose the angle of elevation of the top of a tree at a point E due east of the tree is 60° and that at a point F due west of the tree is 30°. If the distance between the points E and F is 160 feet, then what is the height of the tree ?

A

`40sqrt(3)` feet

B

60 feet

C

`40/sqrt(3)` feet

D

23 feet

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