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Question

The length of the shadow of a tower standing on level plane is found to be 2x mts longer when sun's altitude is 30° than when it was 45°. Prove that the height of tower is $straight x open parentheses square root of 3 plus 1 close parentheses space mts.$

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Solution

straight x space open parentheses square root of 3 plus 1 close parentheses space straight m