Home
Class 10
MATHS
ln triangle A B C , A B=7 cm, B C=12 cm,...

ln `triangle A B C , A B=7 cm, B C=12 cm, /_ B=40^circ`
a) Find the area of the triangle.
b) Calculate the length of AC.

Promotional Banner

Topper's Solved these Questions

  • TANGENTS

    V PUBLICATION|Exercise QUESTION BANK|62 Videos

Similar Questions

Explore conceptually related problems

In triangle ABC, AB=10 cm, AC=20 cm and /_ A=135^circ a) Compute the-area of the triangle.

In /_\ABC , AB=20cm /_A=30^@ , AC=12 cm :- Find the area of the triangle.

In /_\ABC ,AB=8 cm, BC =10cm and /_B = 60^@ :- Find the area of the triangle /_\ABC .

In /_\ ABC, AB=12cm, /_ A = 45^@ and /_B = 30^@ :- Find the area of the triangle ABC.

ln /_\ A B C, A B=20 cm, A C=25 cm and /_ A=70^circ a) Find the perpendicular from C to A B. b) What is the area of the triangle? [sin 70=0.94]

In triangle A B C, /_A=40 ^circ, B C=8 cm Find the circum diameter of the triangle. [sin '40=0.64]'

In the figure, BC =14, /_B = 40^@ , /_C = 50^@ Find the area of triangle ABC.

ln /_\ A B C, A B=10 cm, /_ A=40^circ, /_B=70^circ' Compute the area of the triangle. [tan 40^circ=0.84 , tan 70=2.75]

ln /_\ A B C, A B=10 cm, A C=8 cm /_A=45^circ a) Find the perpendicular distance from C to AB . b) Find the area of the triangle.

In the figure, line AB is parallel to CD. AB=5 cm , AC=4 cm, angle CAB= 90^circ . a) Calculate the area of triangle ABC. b) How much is the area of triangle ABD? Write reason.

V PUBLICATION-TRIGONOMETRY-QUESTION BANK
  1. The figure shows a triangle and its circumcircle. Compute the radius...

    Text Solution

    |

  2. In triangle A B C, /A=40 ^circ, B C=8 cm Find the circum diameter of ...

    Text Solution

    |

  3. ln triangle A B C , A B=7 cm, B C=12 cm, / B=40^circ a) Find the area...

    Text Solution

    |

  4. A B' is a chord of a circle with centre O. '//A O B=70^circ' 'A B=6 ...

    Text Solution

    |

  5. In /\ABC, /A =125^@,BC=8cm. Find the diameter of the circumcircle. [si...

    Text Solution

    |

  6. One ângle of a rhombus is 50^circ and one diagonal is 5 cm. What is i...

    Text Solution

    |

  7. A ladder leans against a wall, with its foot 2 metres away from the ...

    Text Solution

    |

  8. Three rectangles are to be cut along the diagonals and the triangles s...

    Text Solution

    |

  9. In the picture, the vertical lines are equally spaced. '(##VPUTTTMATX...

    Text Solution

    |

  10. One side of a triangle is 6 cm and the angle at its ends are 40^circ ...

    Text Solution

    |

  11. In the figure 'B C=a, C D=b' prove that 'a=3 b' '(##VPUTTTMATXP01C05...

    Text Solution

    |

  12. Find the area of a triangle whose sides are a and b and the angle betw...

    Text Solution

    |

  13. ln /\ A B C, A B=10 cm, / A=40^circ, /B=70^circ' Compute the area of ...

    Text Solution

    |

  14. AB' is the diameter of the circle. If 'PA=9' and '/\ P A G=30^circ' fi...

    Text Solution

    |

  15. A man 1.7metres tall stands 10 metres away from the foot of a tree, an...

    Text Solution

    |

  16. A man 1.8 metres tall looks down from the top of a light house 25 metr...

    Text Solution

    |

  17. A boy standing at the edge of a canal sees the top of a tree at an ele...

    Text Solution

    |

  18. When the sun is at an elevation of 40^circ the length of the shadow o...

    Text Solution

    |

  19. When the sun is at an elevation of 35^circ, the shadow of a tree is 10...

    Text Solution

    |

  20. From the top of an electric post, two wires are stretched to either si...

    Text Solution

    |