The horizontal distance between two poles is \( 15 \mathrm{~m} \). The angle of depression of th...

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The horizontal distance between two poles is \( 15 \mathrm{~m} \). The angle of depression of the top of the first pole as seen from the top of the second pole is \( 30^{\circ} \). If the height of the second pole is \( 24 \mathrm{~m} \), find the height of the first pole. \( (\sqrt{3}=1.732) \)
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