An observer 1.5m tall is 20:5m away from a tower 22m high determine angle of elevation
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the angle of elevation is 45*
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arpita54:
how??
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Let the angle be x
b=20.5m
p=22m-1.5m=20.5m
W.K.T. TanA=p/b
=>TanX=20.5/20.5
=>TanX=1
=>TanX=Tan45° (as Tan45°=1)
=>X=45°
Therefore the angle of elevation is 45°.
b=20.5m
p=22m-1.5m=20.5m
W.K.T. TanA=p/b
=>TanX=20.5/20.5
=>TanX=1
=>TanX=Tan45° (as Tan45°=1)
=>X=45°
Therefore the angle of elevation is 45°.
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