Home
Class 12
MATHS
If, in Delta ABC, a = 16, b = 24, c = 20...

If, in `Delta ABC, a = 16, b = 24, c = 20`,
then : `sin (A/2)`= ....

A

`(1)/(2sqrt(2))`

B

`(1)/(sqrt(2))`

C

`(3)/(2sqrt(2))`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • SOLUTION OF TRIANGLE

    MOTION|Exercise EXERCISE - 2 (LEVEL II)|6 Videos
  • SOLUTION OF TRIANGLE

    MOTION|Exercise EXERCISE - 3|33 Videos
  • SOLUTION OF TRIANGLE

    MOTION|Exercise EXERCISE -1|36 Videos
  • SEQUENCE & SERIES

    MOTION|Exercise Exercise -4 Level -II Previous Year /JEE Advanced|22 Videos
  • STRAIGHT LINE

    MOTION|Exercise Exercise 4 Lelvel -II|7 Videos

Similar Questions

Explore conceptually related problems

If, in Delta ABC, a = 18, b = 24, c = 30 , then : sin A = ....

In a Delta ABC, if : a = 16, b = 24 and c = 20 then : cos(B/2) =

In Delta ABC if a= 16 , b= 24 and c = 20 then cos B/2

If, in DeltaABC,a=16,b=24,c=20 then, sin((A)/(2))=____

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

In Delta ABC , if : a^(2), b^(2), c^(2) are in A.P., then : (sin 3B) : (sin B) =

In Delta ABC,a=3,b=4 and c=5, then value of sin A+sin2B+sin3C is

If in triangle ABC , with usual notations , a=18,b=24,c=30 , then sin.(A)/(2) is equal to

If sides a,b,c of Delta ABC are in A.P., then : sin (A/2) cdot sin (C/2)/(sin (B/2) =

MOTION-SOLUTION OF TRIANGLE-EXERCISE - 2 (LEVEL I)
  1. In a DeltaABC, If A=30^@,b=2,c=sqrt3+1, then (C-B)/2 is

    Text Solution

    |

  2. cot (A+B)/2.tan(A-B)/2= (a) (a+b)/(a-b) (b) (a-b)/(a+b)

    Text Solution

    |

  3. In any triangle ABC,1-tan(A/2)tan(B/2)=

    Text Solution

    |

  4. In a triangleABC, if 3tan (A/2) tan (C /2)=1, then sides a,b,c are in

    Text Solution

    |

  5. If, in Delta ABC, a = 16, b = 24, c = 20, then : sin (A/2)= ....

    Text Solution

    |

  6. In triangleABC, (b+a-c)tan((A)/(2))=

    Text Solution

    |

  7. If, in Delta ABC, a = 2x, b = 2y and C = 120^(@) then the area of the ...

    Text Solution

    |

  8. If the median AD of triangle ABC divides the angle BAC in the ratio 1:...

    Text Solution

    |

  9. In a triangle ABC , let angleC=(pi)/2. If r is the in-radius and R is ...

    Text Solution

    |

  10. In an isosceles triangle with base angle alpha and lateral side 4, Rr=

    Text Solution

    |

  11. If I is the incentre of a triangle whose is radius and circumradius ar...

    Text Solution

    |

  12. AD, BE and CF are the medians of triangle ABC whose centroid is G. If ...

    Text Solution

    |

  13. Let 'l' is the length of median from the vertex A to the side BC of a ...

    Text Solution

    |

  14. If in a /\ ABC the altitude from the vertices A,B,C on opposite side a...

    Text Solution

    |

  15. If the radius of the circum-circle of an isosceles triangle PQR is equ...

    Text Solution

    |

  16. In a triangle ABC, if a=2,b=4,c=5 then cosA=

    Text Solution

    |

  17. If in a triangle ABC a,b,c are roots of the equation x^3 - 11 x^2 + 38...

    Text Solution

    |

  18. In a triangle A+B+C=90 then prove that cotA+cotB+cotC=cotAcotBcotC

    Text Solution

    |

  19. If cos A=(sinB)/(2 sin C), then triangleABC is

    Text Solution

    |

  20. Let A, B and C are the angles of a plain triangle and tan(A/2)=1/3...

    Text Solution

    |