- 21.2 m
- 15 m
- 17.3 m
- none of the above

Answer: Option 3

Explanation:

Let the height of tower be h. h/10 = tan 60 degree h/10 = 1.732 h = 10*1.732 = 17.32 m

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She took the posters downtown that afternoon. She filled a rolling suitcase with them ... she took a stapler. And a box of staples. And hope. I think of those things. The paper, the stapler, the staples, the tape, the hope. It makes me sick. Physical things. Forty years of loving someone becomes staples and hop.

-Jonathan Safran Foer
Extremely Loud and Incredibly Close