The shadow of a tower standing on a level plane is found to be 30 m longer when the sun’s elevation is 30° than when it is 60°. Find the height of tower.

The shadow of a tower standing on a level plane is found to be 30 m longer when the sun’s elevation is 30° than when it is 60°. Find the height of tower.
1). 10√3 meter
2). 15 meter
3). 30√3 meter
4). 15√3 meter

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