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andle 9 -ith the lexed ground such that tamazuming there is no slack in the rintthe top of the tower frem the eye of the chserver. |
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Answer» From the figure (see the attached file kindly),OB/BC=tanAor, (22-1.5)/20.5=tanAor, tanA=20.5/20.5or, tanA=1or, tanA=tan45°or, A=45°∴, the angle of elevation is 45°. |
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