Home
Class 11
MATHS
In Delta^("le") ABC , if a,b and A are g...

In `Delta^("le") ABC` , if a,b and A are given then there are two triangles are formed with third side `c_(1)" and " c_(2)` such that the sum of their areas is

A

`1/2 b^(2) cos 2A`

B

`1/2 b^(2) sin 2A`

C

`b^(2) sin 2A`

D

`b^(2) cos 2A`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • PROPERTIES OF TRIANGLES

    AAKASH SERIES|Exercise LECTURE SHEET EXERCISE - IV (More than one correct answer Type Questions)|3 Videos
  • PROPERTIES OF TRIANGLES

    AAKASH SERIES|Exercise LECTURE SHEET EXERCISE - IV (Matrix Matching Type Questions)|2 Videos
  • PROPERTIES OF TRIANGLES

    AAKASH SERIES|Exercise LECTURE SHEET EXERCISE - III (Straight Objective Type Question)|62 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^("le") ABC , if a , b and A are given then there are two triangles are formed with third side c_(1) " and " c_(2) such that then the value of (c_(1) - c_(2))^(2) + (c_(1) + c_(2))^(2) tan^(2)A =

In Delta^("le") ABC , if b lt c sin B then number of triangles can be constructed is

In Delta ABC, if a= 2, B=120^@, C=30^@ , then the area of the triangle is

If in a Delta^("le") ABC, a, b and angle A are given C_(1),C_(2) are possibel values of 3rd side then

In Delta ABC , if cos A+2 cos B+cos C=2, then the sides of the triangle are in

The sum of any two sides of a triangle must be __ the third side.

In Delta ABC if 2 cos B = ( a)/(c ) , then the triangle is

If in Delta ABC the sides a,b,c are in A.P. Then

In Delta ABC , sum a (sin B - sin C)

AAKASH SERIES-PROPERTIES OF TRIANGLES-LECTURE SHEET EXERCISE - IV (Straight Objective Type Question)
  1. The alternate vertices of a regular hexagon are joined to form another...

    Text Solution

    |

  2. In Delta^("le") ABC , if b lt c sin B then number of triangles can be ...

    Text Solution

    |

  3. In Delta^("le") ABC , if a,b and A are given then there are two triang...

    Text Solution

    |

  4. In Delta^("le") ABC , if a , b and A are given then there are two tri...

    Text Solution

    |

  5. In Delta^("le") ABC, if a,b and A are given then there are two triangl...

    Text Solution

    |

  6. If a, b and A are given and c(1) , c(3) are two values of the side c ...

    Text Solution

    |

  7. In DABC, a, b, A are given and c(1), c(2) are two values of the third...

    Text Solution

    |

  8. Two adjacent sides of cyclic quadrilateral are 2 and 5 and angle betwe...

    Text Solution

    |

  9. E is a point on the side AD of a rectangle ABCD, so that DE = 6, DA = ...

    Text Solution

    |

  10. Let ABCD be a quadrilateral with area 18. with side AB parallel to the...

    Text Solution

    |

  11. If length of the sides of a triangle ABC are 4 cm, 5 cm and 6 cm, O is...

    Text Solution

    |

  12. PQ is the perpendicular bisector of AD.AB bot^("lar") BC " and " DC bo...

    Text Solution

    |

  13. In Delta^("le") ABC, AB = 7, AC = 9 " on " bar(AB), point D is t aken ...

    Text Solution

    |

  14. ABC is a right angled triangle with AB = 4, BC = 3, AC = 5. P is mid p...

    Text Solution

    |

  15. Through the centroid of an equilateral triangle, A line parallel to th...

    Text Solution

    |

  16. A square whose side is 2 cm has its corners cut away so as to form a r...

    Text Solution

    |

  17. In a triangle ABC bisector of lfloor C meets the side AB at D and circ...

    Text Solution

    |

  18. In DeltaABC. on the side BC, D and E are two points such that BD=DE=EC...

    Text Solution

    |

  19. Statement 1: If I inentire of DeltaABC andl(1) excenter opposite to A ...

    Text Solution

    |

  20. In a triangle ABC, the median to the side BC is of length 1/sqrt(11 - ...

    Text Solution

    |