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hundred precent correct answer
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Let AB and CD be two poles, and AC be the wire joining their top
and
Angle made by wire horizontal = angle CAP=0 [ say ]
Given,
AB=7 cm [let AB be smaller pole]
CD=18 m
AD=22 m
Clearly APDB is a Rectangle with
AB=PD=7 m
Also,
CP=CD-PD=18-7=11 m
IN triangle APC
sinθ = CP/AC
=sinθ=11/22=1/2
θ=30degree [sin30 Degree = 1/2 ]
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