Home
Class 9
MATHS
A B C D is a rectangle with O as any ...

`A B C D` is a rectangle with `O` as any point in its interior. If `a r\ ( A O D)=3\ c m^2a n d\ a r\ ( B O C)=6\ c m^2,` then area of rectangle `A B C D` is: `9c m^2` (b) `12\ c m^2` (c) `15 c m^2` (d) `18\ c m^2`

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • ALGEBRAIC IDENTITIES

    RD SHARMA ENGLISH|Exercise All Questions|247 Videos
  • CIRCLE

    RD SHARMA ENGLISH|Exercise All Questions|306 Videos

Similar Questions

Explore conceptually related problems

Medians of A B C intersect at G . If a r\ ( A B C)=27\ c m^2, then a r\ ( B G C)= (i) 6\ c m^2 (b) 9\ c m^2 (c) 12\ c m^2 (d) 18 c m^2

A B C D is a parallelogram. P is any point on C Ddot If a r\ ( D P A)=15\ cm^2\ and a r\ ( A P C)=20 c m^2, then a r\ ( A P B)= (a) 15 c m^2 (b) 20 c m^2 (c) 35\ c m^2 (d) 30 c m^2

If the perimeter of a square is 16 cm, then its area is (a)4 c m^2 (b) 8\ c m^2 (c) 16\ c m^2 (d) 12\ c m^2

The area of a circle is 220\ c m^2 . The area of a square inscribed in it is (a) 49\ c m^2 (b) 70\ c m^2 (c) 140\ c m^2 (d) 150\ c m^2

If the diagonal of a rectangle is 17 cm and its perimeter is 46 cm, the area of the rectangle is (a) 100 c m^2 (b) 110 c m^2 (c) 120\ c m^2 (d) 240\ c m^2

In a A B C if D\ a n d\ E are mid-points of B C\ a n d\ A D respectively such that a r\ ( A E C)=4\ c m^2 , then a r\ ( B E C)= (b) 4\ c m^2 (b) 6\ c m^2 (c) 8\ c m^2 (d) 12 c m^2

A B C D E F , a r( A B C)=9c m^2 , a r( D E F)=16 c m^2 . If B C=2. 1 c m , then the measure of E F is 2. 8 c m (b) 4. 2 c m (c) 2. 5 c m (d) 4. 1 c m

A B C D is a trapezium in which AB\||\D Cdot If a r( A B D)=24\ c m^2a n d\ A B=8\ c m , then height of A B C is 3 cm (b) 4 cm (c) 6 cm (d) 8 cm

A B C D is a parallelogram and O is any point in its interior. Prove that: (i) a r\ ( A O B)+a r\ (C O D)=1/2\ a r(A B C D) (ii) a r\ ( A O B)+\ a r\ ( C O D)=\ a r\ ( B O C)+\ a r( A O D)

In a A B C ,\ D ,\ E ,\ F are the mi-points of sides B C ,\ C A\ a n d\ A B respectively. If a r( A B C)=16 c m^2, then a r\ (t r a p e z i u m\ F B C E)= 4\ c m^2 (b) 8\ c m^2 (c) 12 c m^2 (d) 10 c m^2

RD SHARMA ENGLISH-AREA OF PARALLELOGRAMS AND TRIANGLES-All Questions
  1. Two parallelograms are on equal bases and between the same parallels. ...

    Text Solution

    |

  2. A triangle and a parallelogram are on the same base and between the ...

    Text Solution

    |

  3. Let A B C be a triangle of area 24sq. units and P Q R be the tri...

    Text Solution

    |

  4. The median of a triangle divides it into two (a)congruent triangle...

    Text Solution

    |

  5. In a A B C ,\ D ,\ E ,\ F are the mi-points of sides B C ,\ C A\ a...

    Text Solution

    |

  6. A B C D is a parallelogram. P is any point on C Ddot If a r\ ( D...

    Text Solution

    |

  7. The area of the figure formed by joining the mid-points of the adja...

    Text Solution

    |

  8. A ,\ B ,\ C ,\ D are mid-points of sides of a parallelogram P Q R S...

    Text Solution

    |

  9. The figure obtained by joining the mid-points of the adjacent sides ...

    Text Solution

    |

  10. The mid points of the sides of a triangle A B C along with any o...

    Text Solution

    |

  11. If A D is median of A B C and P is a point on A C such that a r...

    Text Solution

    |

  12. Medians of A B C intersect at G . If a r\ ( A B C)=27\ c m^2, then ...

    Text Solution

    |

  13. In a A B C if D\ a n d\ E are mid-points of B C\ a n d\ A D respect...

    Text Solution

    |

  14. In Figure, A B C D is a parallelogram. If A B=12\ c m ,\ \ A E=7. 5\ c...

    Text Solution

    |

  15. In Figure, P Q R S is a parallelogram. If X\ a n d\ Y are mid-points...

    Text Solution

    |

  16. In Figure, A B C D\ a n d\ F E C G are parallelograms equal in area. I...

    Text Solution

    |

  17. Diagonal A C\ a n d\ B D of trapezium A B C D , in which A B || D C ...

    Text Solution

    |

  18. A B C D is a trapezium in which AB\||\D Cdot If a r( A B D)=24\ c m...

    Text Solution

    |

  19. A B C D is a trapezium with parallel sides A B=a\ a n d\ D C=bdot I...

    Text Solution

    |

  20. A B C D is a rectangle with O as any point in its interior. If a r\...

    Text Solution

    |