Rajender observes a person standing on the ground from a helicopter at an angle of depression 45º. If the helicopter flies at a height of 50 meters from the ground, what is the distance of the person from Rajender?
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17
the answer will be 70.7 meters..
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Answer:
Sin 45 degrees =50/AC
1/2=50/AC
AC=50root 2 m
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