# IMO Level 1- Mathematics Olympiad (SOF) Class 6: Questions 618 - 623 of 1059

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## Question number: 618

### Question

Number of arcs made by the diameter on a circle is ________.

### Choices

Choice (4) | Response | |
---|---|---|

a. | 2 | |

b. | 4 | |

c. | 1 | |

d. | 3 |

## Question number: 619

### Question

A square and a rectangular plot of land have same perimeter. If the square is of side 25 m and rectangle is of width 2 dam. Then area of rectangle is

### Choices

Choice (4) | Response | |
---|---|---|

a. | 160 | |

b. | 1600 | |

c. | 600 | |

d. | 500 |

## Question number: 620

### Question

The number of squares that are required to fill a rectangle of 512 cm by 108 cm if each square is of 8 cm, is

### Choices

Choice (4) | Response | |
---|---|---|

a. | 838 | |

b. | 864 | |

c. | 752 | |

d. | 440 |

## Question number: 621

### Question

A wire is in the shape of a square of perimeter 64 cm. A rectangle is formed with this wire such that its length is 20 cm. Then, the area of the rectangle is

### Choices

Choice (4) | Response | |
---|---|---|

a. | 880 | |

b. | 240 | |

c. | 256 | |

d. | None of the above |

## Question number: 622

### Question

Number of line segments possible with four collinear points is ________.

### Choices

Choice (4) | Response | |
---|---|---|

a. | 5 | |

b. | 6 | |

c. | 3 | |

d. | Infinite |

## Question number: 623

### Question

A circle is inscribed in a rectangle as shown. If the radius of the circle is 6 cm, then the perimeter of rectangle is

### Choices

Choice (4) | Response | |
---|---|---|

a. | 56 cm | |

b. | 58 cm | |

c. | 24 cm | |

d. | 52 cm |