# IMO Level 1- Mathematics Olympiad (SOF) Class 6: Questions 398 - 401 of 1059

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## Question number: 398

» Decimals

### Question

The decimal form of is

### Choices

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

a. | 5.000 | |

b. | 5.255 | |

c. | 5.375 | |

d. | 2.325 |

## Question number: 399

» Understanding Elementary Shapes

### Question

State which of the following statement (s) are true?

(i) We can draw a triangle with sides 3 cm, 4 cm and 7 cm.

(ii) We can draw a triangle with two right angles.

(iii) The exterior angle of a triangle is equal to the sum of the interior opposite angles.

(iv) Two angles which form a linear pair must be supplementary.

### Choices

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

a. | (i) and (iii) | |

b. | (i) and (ii) | |

c. | (iii) and (iv) | |

d. | (i) and (iv) |

## Question number: 400

» Understanding Elementary Shapes

### Question

Which of the following statement (s) is/are true?

### Choices

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

a. | In a parallelogram the number of acute angles is zero (or) two. | |

b. | A quadrilateral in which both pairs of opposite angles are equal is parallelogram | |

c. | A parallelogram in which two adjacent angles are equal is a rectangle. | |

d. | All a. , b. and c. are correct |

## Question number: 401

» Understanding Elementary Shapes

### Question

Find the value of x.

### Choices

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

a. | 50 | |

b. | 23 | |

c. | 24.9 | |

d. | 35.7 |