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The angle of elevation of the top of a t...

The angle of elevation of the top of a tower from two points at a distance of 4m and 9 m from the base of the tower and in the same straight line with it are complementary. Prove that the height of the tower is 6m.

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6 mtr
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CPC CAMBRIDGE PUBLICATION-SOME APPLICATIONS OF TRIGONOMETRY-EXERCISE 12.1
  1. A circus artist is climbing a 20m long rope, which is tightly stretche...

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  2. A tree breaks due to storm and the broken part bends so that the top o...

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  3. A contractor plans to install two slides for the children to the play ...

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  4. The angle of elevation of the top of a tower from a point the ground, ...

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  5. A kite is flying at a height of 60 m above the ground. The dtring atta...

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  6. A 1.5 m tall boy is standing at some distance from a 30 m tall buildin...

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  7. From a point on the ground, the angles of elevation of the bottom and ...

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  8. A statue, 1.6 m stands on the top of a pedestal. From a point on the g...

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  9. The angle of elevation of the top of a building from the foot of the t...

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  10. Two poles of equal heights are standing opposite each other on either ...

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  11. A TV tower stands verically on the bank of a canal. From a point on th...

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  12. From the top of a 7m high building, the angle of elevation of the top ...

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  13. As observed from the top of a75 m high lighthouse from the sea-level, ...

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  14. A 1.2 m tall girl spots a balloon moving with the wind in a horizontal...

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  15. A straight highway leads to the foot of a tower. A man standing at the...

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  16. The angle of elevation of the top of a tower from two points at a dist...

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