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The horizontal distance between two towe...

The horizontal distance between two towers is `60mts`. The angular elevation of the top of the taller tower as seen from the top of the shorter one is `30^(circ).` If the height of the taller tower is 150 mts, the height of the shorter one is

A

`116mts` nearly

B

`200mts` nearly

C

`216mts` nearly

D

none of these

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HIMALAYA PUBLICATION-MEASUREMENT OF ANGLES, TRIGONOMETRIC RATIOS AND RELATION BETWEEN SIDES AND ANGLES OF A TRIANGLE-QUESTION BANK
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  2. The angle of depression of the top of a tower at a point 70mts from th...

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  3. The horizontal distance between two towers is 60mts. The angular eleva...

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  4. In the triangle A B C, hat(A)=30^(circ), hat(C)=105^(circ) and b=3 sqr...

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  5. In the triangle A B C, hat(A)=75^(circ), hat(B)=45^(circ), c=sqrt(3), ...

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  6. In the triangle A B C, hat(A)=120^(circ), b=2, hat(C)=30^(circ) then a...

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  7. In a triangle ABC b=sqrt(3), c=1, A=30^(circ) then the largest angle o...

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  8. If the angles of a triangle are in the ratio 1 : 2 : 3, then the sides...

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  9. The angles A,B and C of a triangle ABC are in A.P. If b:c=sqrt(3):sqrt...

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  10. In a triangle A B C, hat(A)=45^(circ), hat(B)=75^(circ), then a+c sqrt...

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  11. If in a triangle A B C, a=5, b=4, A=(pi)/(2)+B, then the value of C is

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  12. If the sides of a triangle are x^(2)+x+1, x^(2)-1 and 2 x+1 then the l...

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  13. If in a triangle ABC, acos^(2).(C)/(2)+c cos^(2).(A)/(2)=(3b)/(2), the...

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  14. In a triangle A B C, if cot A, cot B, cot C are in A.P, then a^(2), b^...

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  15. If the angles A, B, C of a triangle are in A . P and sides a, b, c are...

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  16. In a triangle A B C, hat(A)=(pi)/(2) then cos ^(2) B+cos ^(2) C=

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  17. In a triangle ABC, a=4, b=3, /A=60^(@), then c is the root of the equa...

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  18. In a DeltaABC, if a+b=3c, then the value of cot.(A)/(2)cot.(B)/(2) is

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  19. If a cosA=b cos B then prove that Delta ABC is either isosceles or rig...

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  20. In a triangle A B C, a=2 x, b=2 y and hat(C)=120^(circ) then the area ...

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