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The angles of elevation of Top of a rock...

The angles of elevation of Top of a rock from the Top and foot of 200 mts high tower are respectively `45^@` and `60^@`. Find the height of the rock and tower.

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BEYOND PUBLICATION-APPLICATIONS OF TRIGNOMETRY-EXERCISE
  1. Length of the shadow of a 15 meter high pole is 5sqrt(3) meters at 7 ...

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

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  3. The angles of elevation of Top of a rock from the Top and foot of 200 ...

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  4. A person from the top of a building of height 25 m has observed anothe...

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  5. A Ladder of 4.6 m Length is laid against a wall. The distance between ...

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  6. The angle of elevation of an aeroplan flying at a height of 1500 m fro...

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  7. The tops of two poles of heights 10 metres and 12 metres are connected...

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  8. The slope of a hill makes an angle of 60^@ with the horizontal. If one...

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  9. If the shadow of 10 m high tree is 10 sqrt 3 m. Then find the angle of...

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  10. If a tree of heigh 21 m is broken but not completely separated and the...

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  11. From the top of a 10 m high tower, the angle of depression of a point ...

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  12. The angle of elevation of the top of a tower from a point situated at ...

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  13. If altitude of the sun is 60 degrees, the height of a tower which cast...

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  14. The ratio of the lengths of a tree and its shadow is 1 : (1 / sqrt 3) ...

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  15. The length of the string of a kitef flying at 100m above the ground wi...

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  16. The angle of elevation of the top of a tower from a point of the groun...

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  17. The angle of elevation of the top of a tree from a point at a distance...

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  18. A steel pole is 10 m high. To keep the pole upright one end of a steel...

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  19. If the angle of elevation of Sun is 45^(@), then the length of the sha...

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  20. A tower subtends an angle alpha at a point A on the same level as the ...

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