SELECT * FROM question_mgmt as q WHERE id=9768 AND status=1 SELECT id,question_no,question,chapter FROM question_mgmt as q WHERE courseId=9 AND subId=6 AND chapterId=276 and ex_no='1' AND status=1 ORDER BY CAST(question_no AS UNSIGNED)
From a point on the ground, the angles of elevation of the bottom and the top of a transmission tower fixed at the top of a 20 m high building are 45° and 60° respectively. Find the height of the tower.
Let AB = x m be the height of transmission tower
BC = 20 m height of building (given)
Angle of elevation from top of tower = 600
Angle of elevation from bottom of tower = 45o
To find : height of tower i.e., AB
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