When suns elevation is \( 30^{\circ} \), the shadow of a tower standing on a level plane is foun...

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When suns elevation is \( 30^{\circ} \), the shadow of a tower standing on a level plane is found to be \( 50 \mathrm{~m} \) longer than when it is \( 60^{\circ} \). Find the height of the tower.
a. \( 5 \sqrt{3} \)
b. \( 25 \sqrt{3} \)
c. \( 15 \sqrt{3} \)
d. \( 3 \sqrt{3} \)
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