# IMO Level 1- Mathematics Olympiad (SOF) Class 6: Questions 642 - 647 of 1059

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## Question number: 642

### Question

The length of a rectangle is of its breadth. If its area is 72 , its perimeter will be

### Choices

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

a. | 36 m | |

b. | 56 m | |

c. | 12 m | |

d. | 24 m |

## Question number: 643

### Question

Which of the following is true?

(i) A sector is the region in the interior of a circle enclosed by an arc on one side and a pair of radii on the other two sides.

(ii) A segment of a circle, is region in the interior of the circle enclosed by an arc and a chord.

### Choices

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

a. | (i) & (ii) | |

b. | Only (i) | |

c. | Only (ii) | |

d. | Neither (i) nor (ii) |

## Question number: 644

### Question

The number of tiles that are required to fill an area of 125 m by 215 m if each tile is of 5 cm by 25 cm, is

### Choices

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

a. | 230 | |

b. | 215 | |

c. | 185 | |

d. | 325 |

## Question number: 645

### Question

A student is making some cards for a project from a thick sheet of 112 cm by 198 cm if each card requires a piece of sheet of size 8 cm by 6 cm, is

### Choices

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

a. | 264 | |

b. | 462 | |

c. | 397 | |

d. | 414 |

## Question number: 646

### Question

Number of arcs made by a chord on a circle is ________.

### Choices

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

a. | 2 | |

b. | 1 | |

c. | 4 | |

d. | 3 |

## Question number: 647

### Question

A runner takes 3 rounds of a squared park of 300 dm. Then the total distance covered by him is

### Choices

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

a. | 250 m | |

b. | 360 m | |

c. | 125 m | |

d. | 720 m |