# IMO Level 1- Mathematics Olympiad (SOF) Class 9: Questions 185 - 190 of 931

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## Question 185

### Question

MCQ▾In a parallelogram ABCD, , then the measurement of ∠ A is ________

### Choices

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

a. | 120˚ | |

b. | 90˚ | |

c. | 75˚ | |

d. | 65˚ |

## Question 186

### Question

MCQ▾The given figure, ABCD is a trapezium in which ∠ A = (x + 25) ˚, ∠ B = y˚ , ∠ C = 95˚ and ∠ D = (2x + 5) ˚ then the value of x and y are________

### Choices

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

a. | ||

b. | ||

c. | ||

d. |

## Question 187

### Question

MCQ▾In the given figure, PQRS is a trapezium in which PQ = 19 cm, PR = QS = 20 cm, ₹ = x cm and the distance between PQ and ₹ is 12 cm. Then the value of x is ________

### Choices

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

a. | 43 cm | |

b. | 58 cm | |

c. | 52 cm | |

d. | 51 cm |

## Question 188

### Question

MCQ▾In and , , are extended to X and Y respectively and . Under which congruency criterion, the triangles are congruent?

### Choices

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

a. | SAA | |

b. | SAS | |

c. | SSS | |

d. | SSA |

## Question 189

### Question

MCQ▾The angle between bisectors of the angles of a linear pair is ________

### Choices

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

a. | 90˚ | |

b. | 30˚ | |

c. | 45˚ | |

d. | 180˚ |

## Question 190

### Question

MCQ▾Three parallel lines are cut by two transversals as shown in the given figure. If , and , then the length of QR is ________

### Choices

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

a. | 12 cm | |

b. | 14 cm | |

c. | 16 cm | |

d. | 10 cm |