# IMO Level 1- Mathematics Olympiad (SOF) Class 9: Questions 137 - 143 of 931

Access detailed explanations (illustrated with images and videos) to **931** questions. Access all new questions- tracking exam pattern and syllabus. View the complete topic-wise distribution of questions. *Unlimited Access, Unlimited Time, on Unlimited Devices*!

View Sample Explanation or View Features.

Rs. 450.00 -OR-

How to register? Already Subscribed?

## Question 137

### Question

MCQ▾Diagonals of a rectangle PQRS intersect at O. If∠POS = 86˚, then ∠RQO is ________

### Choices

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

a. | 68˚ | |

b. | 50˚ | |

c. | 79˚ | |

d. | 47˚ |

## Question 138

### Question

MCQ▾In the given figure, PQRS is a trapezium in which PQ = 9 cm, PR = QS = 10 cm, RS = x cm and the distance between PQ and RS is 8 cm. Then the value of x is ________

### Choices

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

a. | 22 cm | |

b. | 21 cm | |

c. | 14 cm | |

d. | 17 cm |

## Question 139

## Question 140

### Question

MCQ▾In the given figure, and . Then ∠FCD is ________.

### Choices

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

a. | 120˚ | |

b. | 60˚ | |

c. | 45 | |

d. | 90˚ |

## Question 141

### Question

MCQ▾If , and, then x and y respectively are ________

### Choices

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

a. | 40˚, 30˚ | |

b. | 30˚, 45˚ | |

c. | 50˚, 77˚ | |

d. | 90˚, 30˚ |

## Question 142

### Question

MCQ▾If the diagonals of a parallelogram are equal, then it is a ________

### Choices

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

a. | Rhombus | |

b. | Trapezium | |

c. | Rectangle | |

d. | Square |

## Question 143

### Question

MCQ▾In the given figure and, then value of x is________.

### Choices

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

a. | 80˚ | |

b. | 85˚ | |

c. | 90˚ | |

d. | 95˚ |