Home
Class 10
MATHS
In a triangles ABC , angle A = x^(@) , ...

In a triangles ABC `, angle A = x^(@) , angle B = (3x - 2) ^(@) and angle C = y^(@) , " Also " ,angle C - angle B = 9^(@) ` Find all the three angles of the ` Delta ABC `.

Text Solution

Verified by Experts

The correct Answer is:
`angleA = 25^(@), angleB = 73^(@), angleC = 82^(@)`
Promotional Banner

Topper's Solved these Questions

  • LINEAR EQUATIONS IN TWO VARIABLES

    NAGEEN PRAKASHAN ENGLISH|Exercise Revision Exercise Very Short Answer Questions|9 Videos
  • LINEAR EQUATIONS IN TWO VARIABLES

    NAGEEN PRAKASHAN ENGLISH|Exercise Revision Exercise Short Answer Questions|10 Videos
  • LINEAR EQUATIONS IN TWO VARIABLES

    NAGEEN PRAKASHAN ENGLISH|Exercise Exercise 3d|35 Videos
  • INTRODUCTION TO TRIGONOMETRY

    NAGEEN PRAKASHAN ENGLISH|Exercise Revision Exercise Long Answer Questions|5 Videos
  • POLYNOMIALS

    NAGEEN PRAKASHAN ENGLISH|Exercise Revision Exercise Long Answer Questions|4 Videos

Similar Questions

Explore conceptually related problems

If in a Delta ABC, angle A = 45^(@) , angle B = 75^(@), then

In a Delta ABC, if angle A = 40^(@) and angle B = 55^(@) " then " angle C is

Construct a triangle ABC given that BC = 5 . 4 cm, angle B = 70^(@) and angle C = 58^(@)

Construct a triangle ABC in which BC =5 cm, angle B = 60^(@) and angle C = 45^(@).

In a triangle ABC, sin A- cos B = Cos C , then angle B is

In a triangle ABC, angle A = 60^(@) and b : c = (sqrt3 + 1) : 2 , then find the value of (angle B - angle C)

Construct a Delta ABC with angle B = 50^(@), angle C = 60^(@) , and sides BC = 7.5 cm.

In a triangle ABC a= 4 , b= 3 , angle A =60 ^@ ,Then c is root of equation :-

In a triangle ABC, right-angled at B, side BC = 20 cm and angle A= 30°. Find the length of AB.

In Delta ABC , angle B = 90^(@) find the values of : cos A cos C -sin A sin C

NAGEEN PRAKASHAN ENGLISH-LINEAR EQUATIONS IN TWO VARIABLES -Exercise 3e
  1. Point A and B are 90 km apart from each other on a highway. A car s...

    Text Solution

    |

  2. in the triangle ABC , /A=x^@,/B=3x^@,/C=y^@. if 3y-5x=30 then prove th...

    Text Solution

    |

  3. In a triangles ABC , angle A = x^(@) , angle B = (3x - 2) ^(@) and a...

    Text Solution

    |

  4. The largest angle of a triangle is twice the sum of the other two. The...

    Text Solution

    |

  5. In a cyclic quadrilateral A B C D , /A=(2x+4)o,\ \ /B=(y+3)o,\ \ /C...

    Text Solution

    |

  6. If in a rectangle, the length is increased by 2 units and breadth is r...

    Text Solution

    |

  7. The perimeter of a rectangle plot is 32 metres. If the length is incre...

    Text Solution

    |

  8. The area of a rectangle remains the same if the length is increased...

    Text Solution

    |

  9. A man went to a Bank with Rs. 1000. He asked the cashier to give him R...

    Text Solution

    |

  10. Post cards costing 15 paise each and inland letters costing 75 paise e...

    Text Solution

    |

  11. 2 men and 5 boys together can finish a piece of work in 4 days, while ...

    Text Solution

    |

  12. A and B together can do a piece of work in 15 days. If 1 day's work of...

    Text Solution

    |

  13. A takes 3 hours more than B to walk a distance of 30 km. But, if...

    Text Solution

    |

  14. The boat goes 25 km upstream and 33 km downstream in 8 hours. It can a...

    Text Solution

    |

  15. A boat travels for 7 hours. If it travels 4 hours downstream and 3 hou...

    Text Solution

    |

  16. A sailor goes 8 km downstream in 40 minutes and returns in 1 hours....

    Text Solution

    |

  17. Anshula walks 35 km partly at the rate 4 km/hour and Partly at 5 km/ho...

    Text Solution

    |

  18. A bucket when filled (5)/(7) with water weights 12 kg and filled (3)/(...

    Text Solution

    |

  19. Acids with 25% and 40% concentrations are mixed to get 60 litres of 30...

    Text Solution

    |

  20. A person invested some amount at the rate of 12% simple interest and ...

    Text Solution

    |