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An aeroplane at an altitude of 200 metre...

An aeroplane at an altitude of 200 metres observes the angles of depression of opposite points on the two banks of a river to be `45^0a n d60^0dot` Find the width of the river.

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An aeroplane at an altitude of 250 m observes the angle of depression of two boats on the opposite banks of a river to be 45^(@)and60^(@) respectively. Find the width of the river. Write the answer correct to the nearest whole number.

An aeroplane is flying at a height of 210 m. Flying at this height at some instant the angles of depression of two points in a line in opposite directions on both the banks of the river are 45^@ and 60^@ . Find the width of the river. (U s e\ \ sqrt(3)=1. 73)

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An aeroplane id flying at a height of 300 m above the ground. Fying at this height , theangles of depression from the aeroplane of two points on both banks of a river in opposite directions are 45^(@)" and "60^(@) respectively. Find the width of the river.[use sqrt3=1.732 ]

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An observer on the top of a cliff, 200 m above the sea-level, observes the angles of depression of the two ships to be 45^(@) and 30^(@) respectively. Find the distance between the ships, if the ships are on the opposite sides of the cliff

An observer on the top of a cliff, 200 m above the sea-level, observes the angles of depression of the two ships to be 45^(@) and 30^(@) respectively. Find the distance between the ships, if the ships are on the same side of the cliff,

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RD SHARMA ENGLISH-SOME APPLICATIONS OF TRIGONOMETRY-All Questions
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  6. The shadow of a flag-staff is three times as long as the shadow of the...

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  7. A person standing on the bank of a river observes that the angle of ...

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  8. Two stations due south of a leaning tower which leans towards the nort...

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  9. From an aeroplane vertically above a straight horizontal road, the ...

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  10. A ladder rests against a wall at an angle alpha to the horizontal. It...

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  11. If the angle of elevation of a cloud from a point h metres above a lak...

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  14. The length of shadow of a tower on the plane ground is sqrt(3) times t...

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  15. Two poles are a metres apart and the height of one is double of the ...

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  16. The angle of elevation of a tower from a point on the same level as th...

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  17. On a horizontal plane there is a vertical tower with a flag pole on th...

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  18. The angle of elevation of the top of a tower as observed from a point ...

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  19. The angle of elevation of the top of a tower from a point A on the ...

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  20. The angle of elevation of the top of a tower standing on a horizontal ...

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