Home
Class 10
MATHS
A rectangular sheet of paper 40 cm xx 22...

A rectangular sheet of paper 40 cm `xx` 22 cm , is rolled to form a hollow cylinder of height 40 cm . The radius of the cylinder (in cm ) is

A

3.5

B

7

C

`(80)/(7)`

D

`5`

Text Solution

Verified by Experts

The correct Answer is:
A
`2pi r =22 rArr r =(22 xx 1/2 xx 7/22)cm = 3.5 cm `
Promotional Banner

Topper's Solved these Questions

  • VOLUME AND SURFACE AREAS OF SOLIDS

    RS AGGARWAL|Exercise MULTIPLE-CHOICE QUESTIONS(MCQ)|14 Videos

  • VOLUME AND SURFACE AREAS OF SOLIDS

    RS AGGARWAL|Exercise Exercise 17D|40 Videos

  • TRIGONOMETRIC RATIOS OF COMPLEMENTARY ANGLES

    RS AGGARWAL|Exercise Exercise 12|15 Videos

Similar Questions

Explore conceptually related problems

A rectangular sheet of paper 40 c mxx22 c m , is rolled to form a hollow cylinder of height 40 cm. The radius of the cylinder (in cm) is (a) 3.5 (b) 7 (c) 80//7 (d) 5

A rectangular sheat of paper 44cm xx18cm is a rolled along its length and a cylinder is formed.Find the radius of the cylinder.

A rectangular sheat of paper 44cm xx18cm is rolled along its length and a cylinder is formed.Find the radius of the cylinder.

A rectangular sheet of paper 88 cm xx 10 cm is folded without overlapping to make a cylinder of height 10 cm. What is the capacity (in litres) of the cylinder ? ("Take "pi = (22)/(7))

A rectangular sheet of paper 44 cm x 18 cm is rolled along its length and a cylinder is formed. The volume of the cylinder so formed is equal to (Take pi = 22/7)

A rectangular piece of paper 11cm xx4cm is folded without overlapping to make a cylinder of height 4cm. Find the volume of the cylinder.

A rectangular piece of paper 22cmxx 6cm is folded without overlapping to make a cylinder of height 6cm. Find the volume of the cylinder.

A rectangular paper of 44 cm long and 6 cm wide is rolled to form a cylinder of height equal to width of the paper. The radius of the base of the cylinder so rolled is

A rectangular sheet of paper which is 88 cm long and 11 cm wide is rolled to form a cylinder of height equal to its width of the paper. What is the volume of the cylinder so formed?

RS AGGARWAL-VOLUME AND SURFACE AREAS OF SOLIDS-Multiple Choice Questions (Mcq)
  1. The radius (in cm ) of the largest right circular cone that can be cut...

    Text Solution

    |

  2. A metallic solid sphere of radius 9 cm is melted to form a solid cylin...

    Text Solution

    |

  3. A rectangular sheet of paper 40 cm xx 22 cm , is rolled to form a holl...

    Text Solution

    |

  4. The number of solid spheres , each of diameter 6 cm , that can be made...

    Text Solution

    |

  5. The surface areas of two spheres are in the ratio 16 : 9 . The ratio o...

    Text Solution

    |

  6. If the surface area of sphere is 616 cm^(2) , its diameter (in cm) is

    Text Solution

    |

  7. If the radius of a sphere becomes 3 times then its volume will become

    Text Solution

    |

  8. If the height of a bucket in the shape of frustum of a cone is 16 cm a...

    Text Solution

    |

  9. A sphere of diameter 18 cm is dropped into a cylindrical vessel of dia...

    Text Solution

    |

  10. A solid right circular cone is cut into two parts at the middle of its...

    Text Solution

    |

  11. The radii of the circular ends of a bucket of height 40 cm are 24 cm a...

    Text Solution

    |

  12. A solid is hemispherical at the bottom and conical (of same radius) ab...

    Text Solution

    |

  13. If the radius of the base of a right circular cylinder is halved, keep...

    Text Solution

    |

  14. A cubical ice-cream brick of edge 22 cm is to be distributed among som...

    Text Solution

    |

  15. A mason constructs a wall of dimensions (270 cm xx 300 cm xx 350 cm ) ...

    Text Solution

    |

  16. Twelve solid spheres of the same size are made by melting a solid me...

    Text Solution

    |

  17. The diameters of two circular ends of a bucket are 44 cm and 24 cm and...

    Text Solution

    |

  18. The slant height of a bucket is 45 cm and the radii of its top and and...

    Text Solution

    |

  19. The volume of two spheres are in the ratio of 64: 27 . The ratio of su...

    Text Solution

    |

  20. A hollow cube of internal edge 22 cm is filled with spherical marbles ...

    Text Solution

    |