Home
Class 11
MATHS
In triangle ABC, if r(1)=3, r(2)=10, r(3...

In triangle ABC, if `r_(1)=3, r_(2)=10, r_(3)=15` then R=

A

5

B

12

C

13

D

`13//2`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • PROPERTIES OF TRIANGLES

    AAKASH SERIES|Exercise PRACTICE SHEET (EXERCISE-III) (LEVEL-II) (Straight Objective Type Questions)|39 Videos

  • PROPERTIES OF TRIANGLES

    AAKASH SERIES|Exercise PRACTICE SHEET (EXERCISE-III) (LEVEL-II) (More than one correct answer Type Questions)|5 Videos

  • PROPERTIES OF TRIANGLES

    AAKASH SERIES|Exercise PRACTICE SHEET (EXERCISE-II) (LEVEL-II) (Straight Objective Type Questions)|39 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 Delta ABC, if r_1=3, r_2=10, r_3=15 then c=

If in a triangle ABC, r_(1)=2, r_(2)=3 and r_(3) =6 then b=

In in a triangle ABC,r_(1)=2, r_(2) =3 and r_(3)=6 then a=

In Delta ABC, if r_1=36, r_2=18, r_3=12 , then R=

In Delta ABC , if r_1= 3 r_2 = 10 , r_3 = 15, then R =

In Delta ABC, if r_1= 3 , r_2 = 10 , r_3 =15 , then c=

In Delta ABC, if r_1=36, r_2=18,r_3=12 , then b=

In Delta ABC, if r_1=8, r_2=12, r_3=24 , then a=

In a Delta^("le") ABC if r_(1)=2r_(2)=3r_(3) then

AAKASH SERIES-PROPERTIES OF TRIANGLES-PRACTICE SHEET (EXERCISE-III) (LEVEL-I) (Straight Objective Type Questions)
  1. r+r(3)+r(1)-r(2)=

    Text Solution

    |

  2. If the sides of a triangle ABC are 6,8,10 units, then the radius of it...

    Text Solution

    |

  3. In triangle ABC, if r(1)=3, r(2)=10, r(3)=15 then R=

    Text Solution

    |

  4. If the diameter of any excircle of a triangle is equal to its perimete...

    Text Solution

    |

  5. In DeltABC, if sqrt(3)r+a= sqrt(3)r+b=s then the triangle is

    Text Solution

    |

  6. In DeltaABC right angled at A cos^(-1)((R)/(r(1)+r(3))) is

    Text Solution

    |

  7. If A, A(1),A(2),A(3) are areas of excircles and incircle of a triangle...

    Text Solution

    |

  8. If 2R+r=r(1) then

    Text Solution

    |

  9. If r(1)=8, r(2)= 12r(3)=24 then C=

    Text Solution

    |

  10. The ratio between the circumradius and invadius of a right angled isos...

    Text Solution

    |

  11. Prove that (r(1)(r(2)+r(3)))/(sqrt(r(1)r(2)+r(2)r(3)+r(3)r(1)))=a

    Text Solution

    |

  12. If a= 30, b = 18, c = 24 then the descending order of r1, r2,r3 ...

    Text Solution

    |

  13. If a = 18 , b=24 , c=30 , find r(1) .

    Text Solution

    |

  14. In DeltaABC, if C=90^(@) then R+r=

    Text Solution

    |

  15. In DeltaABC,sqrt(rr1r2r3)/(2Rr(sinA+sinB+sinC)) =

    Text Solution

    |

  16. (r+r(1))"tan"(B-C)/(2)+(r+r(2))"tan"(C-A)/(2)+(r+r(3))"tan"(A-B)/(2)=

    Text Solution

    |

  17. In DeltaABC" prove that "cos^(2).(A)/(2)+cos^(2).(B)/(2)+cos^(2).(C)/...

    Text Solution

    |

  18. In Delta ABC, the correct formule among the following are Statemen...

    Text Solution

    |

  19. Which of the following statement is true : Statement -I : In Delt...

    Text Solution

    |

  20. The radius of the circle passing through the centre of incircle of Del...

    Text Solution

    |