Home
Class 7
MATHS
The circumference of a circle is 31.4 cm...

The circumference of a circle is 31.4 cm. Find the radius and the area of the circle? `(Take pi = 3.14)`

Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

If the circumference of a circular sheet is 154 m, find its radius. Also find the area of the sheet. (Take pi = 22/ 7 )

The area of a circle is 1386 cm^2 . Find the circumference of the circle.

The circumference of a circle is 88 cm. Find the area of the sector, whose angle at the centre is 45^@ .

The circumference of a circle exceeds its diameter by 30. Find the circumference of the circle.

Circumference of a circle with radius r will be 2pi^2 (True/False)

PSEB-perimeter and Area-Exercise
  1. From a circular card sheet of radius 14 cm, two circles of radius 3.5 ...

    Text Solution

    |

  2. A circle of radius 2 cm is cut out from a square piece of an aluminium...

    Text Solution

    |

  3. The circumference of a circle is 31.4 cm. Find the radius and the area...

    Text Solution

    |

  4. A circular flower bed is surrounded by a path 4 m wide. The diameter o...

    Text Solution

    |

  5. A circular flower garden has an area of 314 m^2. A sprinkler at the ce...

    Text Solution

    |

  6. Find the circumference of the inner and the outer circles, shown in th...

    Text Solution

    |

  7. How many times a wheel of radius 28 cm must rotate to go 352 m? (Take ...

    Text Solution

    |

  8. The minute hand of a circular clock is 15 cm long. How far does the ti...

    Text Solution

    |

  9. A rectangular park is 45 m long and 30 m wide. A path 2.5 m wide is co...

    Text Solution

    |

  10. A path 5 m wide runs along inside a square park of side 100 m. Find th...

    Text Solution

    |

  11. Two cross roads, each of width 5 m, run at right angles through the ce...

    Text Solution

    |

  12. A garden is 90 m long and 75 m broad. A path 5 m wide is to be built o...

    Text Solution

    |

  13. A 3 m wide path runs outside and around a rectangular park of length 1...

    Text Solution

    |

  14. A picture is painted on a cardboard 8 cm long and 5 cm wide such that ...

    Text Solution

    |

  15. A verandah of width 2.25 m is constructed all along outside a room whi...

    Text Solution

    |

  16. A path 1 m wide is built along the border and inside a square garden o...

    Text Solution

    |

  17. Two cross roads, each of width 10 m, cut at right angles through the c...

    Text Solution

    |

  18. Pragya wrapped a cord around a circular pipe of radius 4 cm (adjoining...

    Text Solution

    |

  19. The adjoining figure represents a rectangular lawn with a circular flo...

    Text Solution

    |

  20. In the following figures, find the area of the shaded portion

    Text Solution

    |