# IMO Level 1- Mathematics Olympiad (SOF) Class 8: Questions 321 - 326 of 1040

Access detailed explanations (illustrated with images and videos) to **1040** questions. Access all new questions we will add tracking exam-pattern and syllabus changes. *Unlimited Access for Unlimited Time*! View Sample Explanation or View Features.

Rs. 450.00 or

How to register?

## Question number: 321

» Quadrilaterals and Practical Geometry

### Question

In a parallelogram ABCD, if , then the others angles are________.

### Choices

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

a. | 45 , 125 , 135 | |

b. | 45 , 115 , 115 | |

c. | 35 , 145 , 145 | |

d. | 35 , 135 , 135 |

## Question number: 322

» Quadrilaterals and Practical Geometry

### Question

The exterior angle of a regular polygon is one-fourth of its interior angle. How many sides has the polygon?

### Choices

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

a. | 12 | |

b. | 4 | |

c. | 10 | |

d. | 8 |

## Question number: 323

» Quadrilaterals and Practical Geometry

### Question

To construct a convex quadrilateral which of the following cases is not correct?

### Choices

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

a. | When the lengths of four sides and one diagonal are given | |

b. | When the lengths of three sides and the two diagonal given. | |

c. | When the lengths of two sides and one angle are given. | |

d. | When the lengths of two sides and two included angles are given. |

## Question number: 324

» Quadrilaterals and Practical Geometry

### Question

ABCD is a quadrilateral. If its diagonals are perpendicular bisectors of each other, then ABCD is________.

### Choices

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

a. | Rectangle | |

b. | Rhombus | |

c. | Square | |

d. | Parallelogram |

## Question number: 325

### Question

If a number x is 15 % less than another number y and y is 15 % more than 110, then x is equal to________.

### Choices

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

a. | 100.25 | |

b. | 109.725 | |

c. | 107.525 | |

d. | 120 |

## Question number: 326

### Question

The cost of a vehicle is Rs. 1,20,000. If its value depreciates at the rate of 10 % per annum then total depreciation after 2 years was________.

### Choices

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

a. | 21100 | |

b. | 22800 | |

c. | 21000 | |

d. | 22000 |