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A circular wire of radius 7 cm is cut an...

A circular wire of radius 7 cm is cut and arrange on the diameter of a circle with radius 12 cm. The angle subtended by it at the centre of the circle is …………

A

`(6pi)/(7)`

B

`(7pi)/(6)`

C

`(5pi)/(9)`

D

`(pi)/(3)`

Text Solution

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The correct Answer is:
B
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KUMAR PRAKASHAN-TRIGONOMETRIC FUNCTIONS -TEXTBOOK BASED MCQS
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  2. sin 2 ………… sin 5

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  3. A circular wire of radius 7 cm is cut and arrange on the diameter of a...

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  4. The degree measure of 3 radian is …………

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  5. The angles of a quadrilateral are in A.P. If the greates angle is 120^...

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  6. y=sin""(x)/(2),x in[0,2pi]. The function y is ………. In (0,pi).

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  7. tan15^(@) = …………

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  8. 2cos""(5pi)/(24).cos""(pi)/(24) = ……….

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  9. The value of (tan3x)/(tanx) do not lie between …………

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  10. tan75^(@)-cot75^(@)= ………..

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  11. cosec(-1410^(@))= ………….

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  12. sintheta=-(3)/(5)andpiltthetalt(3pi)/(2) then the value of (sectheta-c...

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  13. Out of the following statement which is false?

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  14. If tantheta+sintheta=mandtantheta-sintheta=n then m^(2)-n^(2) = …………

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  15. cos105^(@)+sin105^(@) = …………

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  16. If A+B=225^(@) then (cotA)/(1+cotA).(cotB)/(1+cotB) = ………….

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  17. If y=(1+tanA)(1-tanB)andA-B=(pi)/(4) then (y+1)^(y+1) = …………

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  18. sin^(2)((pi)/(8))+sin^(2)((3pi)/(8))+sin^(2)((5pi)/(8))+sin^(2)((7pi)/...

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  19. (cos(17^(@))+sin(17^(@)))/(cos(17^(@))-sin(17^(@)))= …………

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  20. (sin(70^(@))+cos(40^(@)))/(cos(70^(@))+sin(40^(@)))= ..........

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