A vertical pole fixed to horizontal ground is divided in the ratio ...

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A vertical pole fixed to horizontal ground is divided in the ratio of \( 3: 7 \) by a mark on it with lower part shorter than
\( \mathrm{P} \) upper part. If the two parts subtend equal angles at a

W. point on the ground \( 18 \mathrm{~m} \) away from the base of other pole, then the height of the pole (in \( \mathrm{m} \) ) is:
[JEE Mains-2021 (August)]
(a) \( 12 \sqrt{15} \)
(b) \( 12 \sqrt{10} \)
(c) \( 8 \sqrt{10} \)
(d) \( 6 \sqrt{10} \)
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