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Questions  

A schematic diagram of a pedestrian overpass is shown in figure. If you walk on the overpass from point A to point B, how far have you walked ?

a
60 ft
b
80 ft
c
64 ft
d
100 ft

detailed solution

Correct option is B

Total distance = 12sin37° +40+12sin37°=20 + 40 + 20 = 80 ft

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