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Tm denotes the number of triangles t...

`T_m` denotes the number of triangles that can be formed with the vertices of a regular polygon of m sides . If `T_(m+1)- T_m=15` then m=

A

3

B

6

C

9

D

12

Text Solution

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The correct Answer is:
B
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DIPTI PUBLICATION ( AP EAMET)-PERMUTATIONS & COMBINATIONS-EXERCISE 1B (COMBINATIONS )
  1. IF T(n) dentoes the number of triangle formed with n points in ...

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  2. Let T(n) be the number of all possible triangles formed by joi...

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  3. Tm denotes the number of triangles that can be formed with the ...

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  4. Given 5 line segments of lengths 2,3,4,5,6 units then the number ...

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  5. The greatest number of points of intersection of 8 lines and 4 cir...

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  6. In plane there are 37 straight lines , of which 13 pass throug...

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  7. A set of m parallel lines another another set of n parallel l...

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  8. The number of diagonals for an n sided polygon is

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  9. The number of diagonal for an n sided polygon with 10 sides is

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  10. The number oif diagonals of an octagons is

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  11. The polygon in which the number of diagonals is equal to the numbe...

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  12. IF a polygon has 35 diagonals , then the number of sides of t...

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  13. The number of sides of a polygon having diagonals 44 is

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  14. A polygon has 54 diagonals , then the number of its sides is :

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  15. A regular polygon of n sides has170 digonals . Then n=

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  16. IF a polygon of n sides has 275 diagonals then n=

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  17. The number of triangle that can be formed by joining the vertices ...

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  18. The number of triangle that can be formed by joining the angula...

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  19. The number of triangle whose vertices are at the vertices of an ...

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  20. The number of rectangles formed in a chess board is

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