jee-main 2021 Q68

jee-main · India · session1_24feb_shift1 Sine and Cosine Rules Heights and distances / angle of elevation problem
Two vertical poles are 150 m apart and the height of one is three times that of the other. If from the middle point of the line joining their feet, an observer finds the angles of elevation of their tops to be complementary, then the height of the shorter pole (in meters) is:
(1) 25
(2) 30
(3) $20 \sqrt { 3 }$
(4) $25 \sqrt { 3 }$ 
Two vertical poles are 150 m apart and the height of one is three times that of the other. If from the middle point of the line joining their feet, an observer finds the angles of elevation of their tops to be complementary, then the height of the shorter pole (in meters) is:\\
(1) 25\\
(2) 30\\
(3) $20 \sqrt { 3 }$\\
(4) $25 \sqrt { 3 }$
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