The rescue helicopter

The rescue helicopter is above the landing site at a height of 180m. The rescue operation site can be seen from here at a depth angle of 52°40'. How far will the helicopter land from the rescue site?

Correct answer:

x =  137 m

Step-by-step explanation:

y=180 m α=52°40=52°+6040°=52.6667°52.6667  tan α = y:x  x=y/tanα=y/tan52.666666666667° =180/tan52.666666666667° =180/1.311105=137=137 m

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