Home
Class 7
MATHS
Find the area of the following circles,...

Find the area of the following circles, given that
:(a) radius = 14 mm (Take `pi = 22/7` )
: (b) diameter = 49 m
:(c) radius = 5 cm

Text Solution

Verified by Experts

Here is the solution:
(a) Radius of the circle = `14 mm`
Area of circle = `πr^2`
= `22/7 × 14 mm × 14 mm`
...
Promotional Banner

Topper's Solved these Questions

  • PERIMETER AND AREA

    NCERT|Exercise EXERCISE 11.4|8 Videos
  • PERIMETER AND AREA

    NCERT|Exercise SOLVED EXAMPLES|22 Videos
  • PERIMETER AND AREA

    NCERT|Exercise EXERCISE 11.2|8 Videos
  • LINES AND ANGLES

    NCERT|Exercise SOLVED EXAMPLES|1 Videos
  • RATIONAL NUMBERS

    NCERT|Exercise SOLVED EXAMPLES|6 Videos

Similar Questions

Explore conceptually related problems

What is the diameter of a circle if the area is 154 cm^2 ? (Take pi = 22/7)

Find the area of a circle of radius 7 cm.

The perimeter of the sector of circle of radius 10.5 cm is (Take pi = (22)/(7) )

(i) Find the area of a circle of radius 21 cm. [Take pi = (22)/(7)] (ii) Find the area of a circle of radius 10 cm. [Take pi = 3.14]

Find the area of the sector of a circle having radius 6 cm and of angle 30^(@) . [Take pi=3.14 ]

A circle has a radius of 7 cm. Find its area. (Use π = 22/7)

What is the circumference of a circular disc of radius 14cm ? (Take pi=(22)/(7))

The surface area (in sq.mm.) of a sphere with radius 1.5 cm is : ( Take pi = (22)/(7) )

NCERT-PERIMETER AND AREA-EXERCISE 11.3
  1. How many times a wheel of radius 28 cm must rotate to go 352 m? (Take...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  7. From a circular card sheet of radius 14 cm, two circles of radius 3.5 ...

    Text Solution

    |

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

    Text Solution

    |

  9. Find the perimeter of the adjoining figure, which is a semicircle inc...

    Text Solution

    |

  10. Find the circumference of the circles with the following radius: (Take...

    Text Solution

    |

  11. Find the area of the following circles, given that :(a) radius = 14 m...

    Text Solution

    |

  12. If the circumference of a sheet is 154m, find its radius. Also find th...

    Text Solution

    |

  13. A gardener wants to fence a circular garden of diameter 21m. Find the ...

    Text Solution

    |

  14. 6).From a circular sheet of radius 4 cm, a circle of radius 3 cm is re...

    Text Solution

    |

  15. Saima wants to put a lace on the edge of a circular table cover of dia...

    Text Solution

    |

  16. Find the cost of polishing a circular table-top of diameter 1.6 m, if ...

    Text Solution

    |

  17. Shazli took a wire of length 44 cm and bent it into the shape of a cir...

    Text Solution

    |