From a point p on the ground, the angle of elevation of the top of a 10m tall building and a helicopter, hovering over the top of the building are 30 degree and 60 degree respectively. Find the height of the helicopter above the ground
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the answer if here ok
total height of the helicopter from the ground= 20m + 10m = 30 m
total height of the helicopter from the ground= 20m + 10m = 30 m
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total height of helicopterabove ground = 20+10=30 m
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