Home
Class 7
MATHS
The radii of two circles are in the rati...

The radii of two circles are in the ratio 2: 3. The ratio of their areas is (a) 2:3 (b) 4:9 (c) 3:2 (d) 9:4

Promotional Banner

Topper's Solved these Questions

  • MENSURATION-1

    RD SHARMA|Exercise All Questions|163 Videos

  • OPERATIONS ON RATIONAL NUMBERS

    RD SHARMA|Exercise All Questions|101 Videos

Similar Questions

Explore conceptually related problems

The areas of two circles are in the ratio 9:4 .The ratio of their circumferences is

The areas of two circles are in the ratio 49:36. The ratio of their circumference is (a) 7:6 (b) 6:7(c)3:2 (d) 2:3

The circumferences of two circles are in the ratio 2:3. Find the ratio of their areas.

The circumference of two circles are in the ratio 2:3. Find the ratio of their areas.

The circumferences of two circles are in the ratio 3:4. The ratio of their areas is 3:4 (b) 4:39:16(d)16:9

If the heights of two cones are in the ratio of 1:4 and the radii of their bases are in the ratio 4:1, then the ratio of their volumes is (a) 1:2 (b) 2:3 (c) 3:4 (d) 4:1

The circumferences of two circles are in the ratio 3:4. Find the ratio of their areas.

The circumferences of two circles are in the ratio 2 : 3. What is the ratio of their areas ?

The volumes of two cubes are in the ratio 8: 27.The ratio of their surface areas is (a) 2:3quad ( b) 4:9quad (c) 12:9quad (d) None of these

The radii of the bases of two cylinders are in the ratio 3 : 4 and their heights are in the ratio 4 : 3. The ratio of their volumes is (a) 2 : 3 (b) 3 : 2 (c) 3 : 4 (d) 4 : 3

RD SHARMA-MENSURATION-2-All Questions
  1. The area of circle is 100 times the area of another circle. What is...

    Text Solution

    |

  2. The ratio of the perimeter (circumference) and diameter of a circle...

    Text Solution

    |

  3. The ratio of the area and circumference of a circle of diameter d is...

    Text Solution

    |

  4. The cost of fencing a circular garden of radius 21 m at Rs 10 per me...

    Text Solution

    |

  5. If the diameter of a circle is equal to the diagonal of a square, th...

    Text Solution

    |

  6. A circle is inscribed in a square of side 14 m. The ratio of the are...

    Text Solution

    |

  7. How many times should a wheel of radius 7 m rotate to go around the ...

    Text Solution

    |

  8. The minute hand of a clock is 14 cm long. How far does the tip of th...

    Text Solution

    |

  9. The cost of fencing a semi-circular garden of radius 14 m at Rs 10 p...

    Text Solution

    |

  10. The area of a square is equal to the area of a circle. The ratio be...

    Text Solution

    |

  11. If A is the area and C is the circumference of a circle, then its ra...

    Text Solution

    |

  12. The area of a circle of circumference C is (a)(C^2)/(4pi) (b) (C^2)/(...

    Text Solution

    |

  13. The circumference of a circle is 44 cm. Its area is (a)77 c m^2 (b)...

    Text Solution

    |

  14. Each side of an equilateral triangle is equal to the radius of a cir...

    Text Solution

    |

  15. The area of a circle is 9pi\ c m^2dot Its circumference is (a)6pi\ c m...

    Text Solution

    |

  16. The area of a circle is increased by 22 c m^2 when its radius is incre...

    Text Solution

    |

  17. The radii of two circles are in the ratio 2: 3. The ratio of their ar...

    Text Solution

    |

  18. The areas of two circles are in the ratio 49 : 36. The ratio of their...

    Text Solution

    |

  19. The circumferences of two circles are in the ratio 3: 4. The ratio o...

    Text Solution

    |

  20. The difference between the circumference and radius of a circle is 3...

    Text Solution

    |