From the roof of a building, the top and bottom of a 14 m flag pole have angles of depression 30° and 60° respectively. Find the height of the building.
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21 m
Step-by-step explanation:
here,
AC = 14+X (DE=BC=14)
IN △AEB,
tan30°= X/DC
DC=X root3
IN △ACD,
tan60°= 14+X/DC
root3 = 14+X/X root3. ( DC= X root3)
X = 7m..
AC=14+7=21 m
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