Home
Class 7
MATHS
Find the altitude of a triangle whose ar...

Find the altitude of a triangle whose area is 42 `c m^2` and base is 12 cm.

Promotional Banner

Topper's Solved these Questions

  • LINES AND ANGLES

    RD SHARMA|Exercise All Questions|120 Videos

  • MENSURATION-2

    RD SHARMA|Exercise All Questions|83 Videos

Similar Questions

Explore conceptually related problems

Find the altitude of a triangle whose base is 20cm and area is 150cm^(2).

Find the altitude of a parallelogram whose area is 54dm^(2) and base is 12dm.

Find the altitude of parallelogram whose area is 2.25 m^2 and base is 25 dm.

Find the altitude of a trapezium whose area is 65cm^(2) and whose bases are 13cm and 26cm .

Find the base of a triangle whose area is 90cm^(2) and height 12 cm.

Find the height of a triangle whose base is 15 cm and area 120 cm^(2)

Find the height of the triangle whose base is 4cm and area is 20cm^(2)

Find tha area of a triangle whose sides are 42 cm, 34cm and 20 cm.

RD SHARMA-MENSURATION-1-All Questions
  1. Triangle A B C is isosceles with A B=A C=7. 5\ c m\ a n d\ B C=9\ c m ...

    Text Solution

    |

  2. Find the area in square centimetres of a triangle whose base and al...

    Text Solution

    |

  3. Find the altitude of a triangle whose area is 42 c m^2 and base is ...

    Text Solution

    |

  4. The area of a triangle is 50 c m^2 If the altitude is 8 cm, what is it...

    Text Solution

    |

  5. Find the area of a right angled triangle whose sides containing the...

    Text Solution

    |

  6. The area of a triangle, whose base and the corresponding altitude a...

    Text Solution

    |

  7. A rectangular field is 48 m long and 20 m wide. How many right tria...

    Text Solution

    |

  8. In Figure, A B C D is a quadrilateral in which diagonal\ A C=84\ c m ;...

    Text Solution

    |

  9. Find the area of the quadrilateral A B C D given in Figure. The diagon...

    Text Solution

    |

  10. In Fig 31, A B C D is a rectangle with dimensions 32 m by 18 m. A D...

    Text Solution

    |

  11. In Fig. 32, A B C D is a rectangle of length A B=40\ c m and breadth B...

    Text Solution

    |

  12. Calculate the area of the quadrilateral A B C D as shown in Fig.33, gi...

    Text Solution

    |

  13. Find the area of a figure formed by a square of side 8 cm and an is...

    Text Solution

    |

  14. Find the area of Fig.34 in the following ways: Sum of the areas of...

    Text Solution

    |

  15. Calculate the area of quadrilateral field A B C D as shown in Fig.35, ...

    Text Solution

    |

  16. Calculate the area of the pentagon A B C D E , where A B=A E and with ...

    Text Solution

    |

  17. The base of a triangular field is three times its altitude. If the ...

    Text Solution

    |

  18. A wall is 4.5 m long and 3 m high. It has two equal windows, each h...

    Text Solution

    |

  19. If the area of a square is 225\ m^2, then its perimeter is 15 m (b) 60...

    Text Solution

    |

  20. If the perimeter of a square is 16 cm, then its area is 4 c m^2 (b...

    Text Solution

    |