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An electric pole 20m high stands up righ...

An electric pole 20m high stands up right on the ground with the help of steel wire to its top and affixed on the ground. If the steel wire makes `60^(@)` with the horizontal ground, find the length of steel wire.

A

`60 sqrt 3 m`

B

20 m

C

60 m

D

`20 / sqrt 3 m`

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BEYOND PUBLICATION-APPLICATIONS OF TRIGNOMETRY-EXERCISE
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  16. If the shadow of a tree is (1)/(sqrt(3)) times the height of the tree,...

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  18. A boat has to cross a river. It crosses river by making an angle of 60...

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