Home
Class 9
MATHS
In a circle, the length of an arc of cen...

In a circle, the length of an arc of central angle `25^(circ)` is 4 centimetres.
i) In the same circle, what is the length of an arc of central angle `75^(circ)` ?
Ii) In a circle of radius one and a half xx the radius of this circle, what is the length of an arc of central angle `75^(circ)` ?

Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

What is the length of an arc of central angle 50^(circ) , in a circle of radius 2.5 centimetres?

In a circle, the length of an arc of central angle 40^(circ) 'is 3 pi centimetres. What is the perimeter of the circle? What is its radius?

The length' of an arc of a circle is 4 cm . What is the length of an arc of the same central angle in a circle of double the radius?

What is the area of a sector of central angle 120^(circ) in a circle of radius 3 centimetres? What is the areá of a sector of. the same central angle in a circle of radius 6 centimetres?

In the given figure radius of the circle is 2 units. Find the length of arc APB .

If an arc of length l of a circle of radius r subtends an angle theta radians at the centre what is the relation connecting l , r , theta

If the length of an arc of a sector having radius 9 cm is 2 pi cm , then find the central angle of the sector?

From an iron ring of radius 9 centimetres, a piece of central angle 30^(circ) is cut off. This is then bent into a small circle. What is the radius of this circle?

Find the length of an arc of a circle of radius 5 cms subtending a central angle measuring 15^@

V PUBLICATION-CIRCLE MEASURES-QUESTIONBANK
  1. From an iron ring of radius 9 centimetres, a piece of central angle 30...

    Text Solution

    |

  2. In a circle, the length of an arc of central angle 40^(circ) 'is 3 pi ...

    Text Solution

    |

  3. In a circle, the length of an arc of central angle 25^(circ) is 4 cent...

    Text Solution

    |

  4. From a bangle of radius 3 centimeters, a piece is to be cut out to mak...

    Text Solution

    |

  5. The picture shows the parts of a circle centered at each vertex of an ...

    Text Solution

    |

  6. Part of circles are drawn, centred at each vertex of a regular octagon...

    Text Solution

    |

  7. If the length of an arc of a sector having radius 9 cm is 2 pi cm, the...

    Text Solution

    |

  8. A rod of length 20 cm is bent in thè form of an arc. If the central an...

    Text Solution

    |

  9. The length' of an arc of a circle is 4 cm. What is the length of an ar...

    Text Solution

    |

  10. Find the circumference of a circle of area 15 sq . cm

    Text Solution

    |

  11. If the perimeter of a circle and perimeter of a square are equal, then...

    Text Solution

    |

  12. What is the area of a sector of central angle 120^(circ) in a circle o...

    Text Solution

    |

  13. Calculate the-area of the green colored part of this picture:

    Text Solution

    |

  14. Centered at each corner of a regular hexagon, a part of a circle is dr...

    Text Solution

    |

  15. The picture below shows two circles, each passing through the center o...

    Text Solution

    |

  16. The figure shows three circles drawn with their centers on each vertex...

    Text Solution

    |

  17. The picture shóws a rectangular sheet of metal with two semicircles (h...

    Text Solution

    |

  18. A garden is in the shape shown below, with two semicircles on the shor...

    Text Solution

    |

  19. The pendulum in a clock is 14 ~cm long. It moves through 40^(circ) mak...

    Text Solution

    |

  20. The minute hand of a clock is 20 ~cm long. What is the area it sweeps ...

    Text Solution

    |