Home
Class 12
MATHS
If, in Delta ABC, a = 13 cm, b = 13cm, c...

If, in `Delta ABC, a = 13 cm, b = 13cm, c = 5 cm`, then cosC is

Promotional Banner

Topper's Solved these Questions

  • TRIGONOMETRIC FUNCTIONS

    MARVEL PUBLICATION|Exercise MULTIPLE CHOICE QUESTIONS - PART - A : BUILDING-UP THE BASE (B) Properties of triangles|27 Videos

  • TRIGONOMETRIC FUNCTIONS

    MARVEL PUBLICATION|Exercise MULTIPLE CHOICE QUESTIONS - PART - B : MASTERING THE BEST|58 Videos

  • TRIGONOMETRIC FUNCTIONS

    MARVEL PUBLICATION|Exercise HARDER SOLVED EXAMPLES|43 Videos

  • THREE DIMENSIONAL GEOMETRY

    MARVEL PUBLICATION|Exercise MULTIPLE CHOICE QUESTIONS|39 Videos

  • VECTORS

    MARVEL PUBLICATION|Exercise TEST YOUR GRASP|20 Videos

Similar Questions

Explore conceptually related problems

If, in a Delta ABC, a = 6cm , b = 8 cm, c = 10cm, then : sin 2A =

In Delta ABC , if : a = 2 cm , b = 3cm and c = 4cm, then /_A =

In Delta ABC, If a=13cm,b=12cm,c=5cm then sin((A)/(2))=

The bisector of angle A in triangle ABC meets BC in D. If AB = 15 cm, AC = 13 cm and BC = 14 cm, then DC =?

If in Delta ABC, b = 3 cm, c = 4 cm and the length of the perpendicular from A to the side BC is 2 cm, then how many such triangle are possible ?

In DeltaABC, if AB=5cm, BC=13cm and CA=12cm, then the distance to vertex 'A' from the side BC is (in cm)

Delta ABC ~ Delta LMN . In Delta ABC, AB = 5.5 cm , BC = 6 cm, CA = 4.5 cm. If MN = 4.8 cm then construct Delta ABC and Delta LMN

If in any triagnle a=13cm, b= 14 cm and c = 15cm, find the inradius of the circle :

In Delta ABC, AB= 4cm, AC = 5 cm and BC = 6 cm . In Delta PQR, PR = 4 cm, PQ = 5 cm and RQ = 6 cm. Delta ABC is congruent to

MARVEL PUBLICATION-TRIGONOMETRIC FUNCTIONS-MULTIPLE CHOICE QUESTIONS - PART - A : BUILDING-UP THE BASE
  1. If H is the orthocentre of the Delta ABC, then find AH.

    Text Solution

    |

  2. If the side of a right-angled triangled are in A.P., then tangents of ...

    Text Solution

    |

  3. If, in Delta ABC, a = 13 cm, b = 13cm, c = 5 cm, then cosC is

    Text Solution

    |

  4. In the Delta ABCA gt B. If the measures of A and B satisfy the equatio...

    Text Solution

    |

  5. In Delta ABC , a= 6 ,b=3 and cos (A-B) = 4/5 .Then are of triangle i...

    Text Solution

    |

  6. If, in Delta ABC, tan A + tan B + tan C gt 0, then the triangle is

    Text Solution

    |

  7. In a DeltaABC, tan A+tan B+tan C =6 and tan A tan B = 2, then the tria...

    Text Solution

    |

  8. If, in Delta ABC, a^(4) + b^(4) + c^(4) = 2a^(2)(b^(2) + c^(2)) then :...

    Text Solution

    |

  9. If, Delta ABC is right angled at C, then : tanAtanB = ....

    Text Solution

    |

  10. In a right of a triangle, the hypotenuse is 2 times the perpendicular....

    Text Solution

    |

  11. Two sides of a triangle are (sqrt(3)+1) and (sqrt(3)-1), and the angle...

    Text Solution

    |

  12. If, in Delta ABC, 3a = b + c then: cot (B/2) cdot cot (C/2) = .....

    Text Solution

    |

  13. If, in Delta ABC, cos A = cos B cdot cos C, then: cot B cdot cot C= ...

    Text Solution

    |

  14. If the altitudes of a Delta are in A.P., then its sdies are in

    Text Solution

    |

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

    Text Solution

    |

  16. If, in Delta ABC, a = 4, b= 5 and C = 6 then /C=....

    Text Solution

    |

  17. If, in Delta ABC, a = 13, b = 14, c = 15, then : sin (A//2) = ....

    Text Solution

    |

  18. If, in Delta ABC, angle C is obstuse, then

    Text Solution

    |

  19. The perimeter of a triangle ABC is saix times the arithmetic mean of ...

    Text Solution

    |

  20. If the area Delta of Delta ABC is given by Delta = a^(2) - (b - c)^(2)...

    Text Solution

    |