Home
Class 11
MATHS
If the angles of triangles ABC are in A....

If the angles of triangles ABC are in A.P. and b: c= ` sqrt3 : sqrt2 " then " angle a = `

A

` 75 ^(@) `

B

` 45 ^(@) `

C

` 30 ^(@) `

D

` 60 ^(@) `

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • PROPERTIES OF TRIANGLES

    AAKASH SERIES|Exercise PRACTICE EXERCISE|132 Videos

  • PROPERTIES OF TRIANGLES

    AAKASH SERIES|Exercise LECTURE SHEET EXERCISE - I ( Straight Objective Type Questions ) |58 Videos

  • PROPERTIES OF TRIANGLES

    AAKASH SERIES|Exercise EXERCISE - 1|98 Videos

  • PLANES

    AAKASH SERIES|Exercise ADVANCED SUBJECTIVE TYPE QUESTIONS|30 Videos

  • PROPERTIES OF VECTORS

    AAKASH SERIES|Exercise PRACTICE EXERCISES|55 Videos

Similar Questions

Explore conceptually related problems

In triangle ABC are in A.P and b:c= sqrt(3): sqrt(2) , then

In a triangle ABC, if A,B, C are in A.P and b:c = sqrt3:sqrt2 , then

If the angles of a triangle are in A.P., a=2 c= 4 , then b=

If the angles of a triangle are in A.P,a=2, c=4 then b=

If the sides of a triangles are in the ratio 2 : sqrt6 : sqrt3 + 1 then its angles are

If a: b: c = 2 : sqrt 6 : ( sqrt3+ 1 ) " then " angle C =

If the angles of the DeltaABC are in A.P., then a^(2)+c^(2)-ac=

The sides of a triangle are in the ratio 1 : sqrt(3) : 2 then the angles are in the ratio

AAKASH SERIES-PROPERTIES OF TRIANGLES-EXERCISE - II
  1. If the angles of triangles ABC are in A.P. and b: c= sqrt3 : sqrt2 "...

    Text Solution

    |

  2. If a: b: c = 2 : sqrt 6 : ( sqrt3+ 1 ) " then " angle C =

    Text Solution

    |

  3. In Delta ABC, " if " sin A , sin B are roots of c^(2) x^(2) - c( a...

    Text Solution

    |

  4. In Delta ABC " if " 3 sin A = 6 sin B = 2 sqrt3 sin C , " then " a...

    Text Solution

    |

  5. The perimeter of a Delta ABC is 6 times the A.M. of the sines of its a...

    Text Solution

    |

  6. The radius of the circumcircle of an isosceles triangle PQR is equal t...

    Text Solution

    |

  7. If b= 3, c= 4 angle B = (pi )/(3) then number of triangles that can b...

    Text Solution

    |

  8. In a triangle ABC, C=90^@. Then (a^2-b^2)/(a^2+b^2)=

    Text Solution

    |

  9. If A = 2 B then a^(2) =

    Text Solution

    |

  10. In Delta ABC , (a)/( cos A) = (b) /( cos B ) = ( c ) /( cos C ) , If ...

    Text Solution

    |

  11. The base of a triangle is 80 and one of the base angles is 60^@. IF th...

    Text Solution

    |

  12. If the sides of trinangles are x^(2) + x+ 1,2 x + 1 , x^(-2) -1 wher...

    Text Solution

    |

  13. The sides of a triangle are sin alpha,cos alpha and sqrt(1+sin alpha c...

    Text Solution

    |

  14. In Delta ABC if b+c:c+a:a+b=11:12:13, then cos A: cos B: cos C=

    Text Solution

    |

  15. The smallest angle of the triangle whose sides are 6+sqrt12,sqrt48,sqr...

    Text Solution

    |

  16. In DeltaABC, " if" (1)/(a+c)+(1)/(b+c)=(3)/(a+b+c) then show that C=...

    Text Solution

    |

  17. If DeltaABC, ifangleC=(pi)/(3), "then"(3)/(a+b+c)-(1)/(a+c) equals

    Text Solution

    |

  18. If C=60^(@), " then show that"(a)/(b+c)+(b)/(c+a)=1

    Text Solution

    |

  19. If angles A,B,C are in A.P . , then 2cos (( A-C)/( 2))=

    Text Solution

    |

  20. If C = 60 ^(@) " then "= ( b)/( c^(2) -a^(2)) + ( a) /( c^(2)- b^(2...

    Text Solution

    |