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If in two circles, arcs of the same leng...

If in two circles, arcs of the same length subtend angles `60^@` and `75^@` at the centre, find the ratio of their radii.

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MODERN PUBLICATION-TRIGNOMETRY-EXERCISE
  1. Find the radius of a circle in which a central angle of 60^@ intercept...

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  2. In a circle of diameter 40 cm, the length of a chord is 20 cm. Find th...

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  3. If in two circles, arcs of the same length subtend angles 60^@ and 75^...

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  4. Find the angle in radian through which a pendulum swings if itslength ...

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  5. Find the angle in radian through which a pendulum swings if itslength ...

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  6. Find the angle in radian through which a pendulum swings if itslength ...

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  9. If G, D and theta be the number of grades, degrees and radians in any ...

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  11. Find the circular measure of an internal angle of a regular : pentagon...

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  13. Find the circular measure of an internal angle of a regular : polygon ...

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  14. The angles of a triangle are in A.P. and the greatest angle of the tri...

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  15. The angles of a triangle are in A.P. and the number of degrees in the ...

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  16. The angles of a triangle are in A.P. and one of them is 80^@. Find all...

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  17. The angles of a triangle are in A.P. and the greatest is 84^@. Find al...

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  18. The angles of a quadrilateral are in A.P. Find all the angles if the ...

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  19. The minute hand of a watch is 1.5 cm long. How many cm does its extrem...

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  20. A horse is tied to post by a rope. If the horse moves along circular p...

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