Home
Class 12
MATHS
In a triangle ABC if b=2,B=30^@ then th...

In a triangle ABC if `b=2,B=30^@` then the area of the circumcircle of triangle ABC in square units is :

A

`pi`

B

`2pi`

C

`4pi`

D

`6pi`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • PROPERTIES OF TRIANGLES

    ML KHANNA|Exercise Problem Set (5)(FILL IN THE BLANKS)|3 Videos

  • PROGRESSIONS

    ML KHANNA|Exercise MISCELLANEOUS EXERCISE (ASSERTION/REASON) |1 Videos

  • RECTANGULAR CARTESIAN CO-ORDINATE SYSTEM AND THE STRAIGHT LINE

    ML KHANNA|Exercise COMPREHENSION |11 Videos

Similar Questions

Explore conceptually related problems

In Fig.3, the area of triangle ABC( in sq.units ) is :

If in a triangle ABC,/_B=60^(@) then

If in a triangle ABC,/_B=60^(@) then

In a triangle ABC ((a+b)cos C+(a+c)cos B+(b+c)cos A)/(sin A+sin B+sin C)=100 then the area of the circumcircle of triangle ABC is

In triangle ABC,/_A=60^(@),/_B=40^(@), and /_C=80^(@) . If P is the center of the circumcircle of triangle ABC with radius unity,then the radius of the circumcircle of triangle BPC is 1 (b) sqrt(3)(c)2(d)sqrt(3)2

If in a triangle ABC, Rr(sinA+sinB+sinC)=96 then the square of the area of the triangle ABC is…….

In a !ABC if r_(1) = 36 , r_(2) = 18 and r_(3) = 12 , then the area of the triangle , in square units, is

If Delta ABC, a = 18, b = 24, c = 30 then the area of the triangle is

In triangle ABC,a:b:c=4:5:6. The ratio of the radius of the circumcircle to that of the incircle is

ML KHANNA-PROPERTIES OF TRIANGLES -Self Assessment Test (Multiple Choise Questions)
  1. In Delta ABC if a= 16 , b= 24 and c = 20 then cos (B/2)

    Text Solution

    |

  2. In Delta ABC, cscA (sin B cos C + cos B sin C) =

    Text Solution

    |

  3. If in a triangles a cos^(2)(C/2)+c cos^(2)(A/2)=(3b)/2, then the sides...

    Text Solution

    |

  4. In triangleABC, If the anlges are in A.P., and b:c=sqrt(3):sqrt(2), t...

    Text Solution

    |

  5. If the angles of a triangle are in the ratio 2 : 3 : 7 ,then the sides...

    Text Solution

    |

  6. If in a right angled triangle the hypotenuse is four times as long as ...

    Text Solution

    |

  7. If the lengths of the sides of a triangle are 3, 5, 7, then its larges...

    Text Solution

    |

  8. In a triangle ABC, right angled at C, find the value of tan A + tan B ...

    Text Solution

    |

  9. The smallest angle of the DeltaABC, when a=7,b=4sqrt(3)andc=sqrt(13) i...

    Text Solution

    |

  10. If in a DeltaABC, cos B = (sin A)/(2 sin C), then the triangle is

    Text Solution

    |

  11. Find the value of tan A, if area of Delta ABC is a^(2) -(b-c)^(2).

    Text Solution

    |

  12. If c^(2)=a^(2) +b^(2), then 4s(s-a)(s-b)(s-c) is equal to

    Text Solution

    |

  13. In a triangle PQR, angleR = pi //2. If tan (P/2) and tan (Q/2) are th...

    Text Solution

    |

  14. If in a Delta PQR, sin P, sin Q , sin R are in AP, then:

    Text Solution

    |

  15. In DeltaABC if (sinA)/(sinC)=(sin(A-B))/(sin(B-C)), then a^(2), b^(2)...

    Text Solution

    |

  16. Let PQR be a triangle of ! area with a = 2 , b = 7/2 and c = 5/2, wher...

    Text Solution

    |

  17. If R is the radius of the circumcircle of the Delta ABC and Delta is ...

    Text Solution

    |

  18. In a triangle ABC if b=2,B=30^@ then the area of the circumcircle of ...

    Text Solution

    |

  19. For a regular polygon let r and R be radii of the inscribed and the ci...

    Text Solution

    |

  20. The x -coordinate of the incentre of the triangle that has the coordin...

    Text Solution

    |