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Point X and Y are on the same horizontal base as the foot of...

Point X and Y are on the same horizontal base as the foot of a building such that X is 96m due east of the building and Y is due west. If the angle of elevation of the top of that building from X is 30o and that of Y is 50o, calculate the distance of Y from the base of the building

A.

30m

B.

32m

C.

42m

D.

50m

Correct answer is B

h = 96 Tan 30o = 55.425

P = 55.425Tan60o 

= 32m