# IMO Level 1- Mathematics Olympiad (SOF) Class 7: Questions 616 - 622 of 1022

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## Question 616

### Question

MCQ▾In , and AD is perpendicular bisector of BC. The property by which is not congruent to is ________.

### Choices

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

a. | AAA property | |

b. | RHS property | |

c. | SSS property | |

d. | SAS property |

## Question 617

### Question

MCQ▾If a, b and c are the sides of an equilateral triangle, then ________.

### Choices

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

a. | ||

b. | ||

c. | ||

d. |

## Question 618

### Question

MCQ▾The three angles of a triangle are in the ratio 1: 2: 3, then the greatest angle is ________.

### Choices

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

a. | ||

b. | ||

c. | ||

d. |

## Question 619

### Question

MCQ▾If the area of a triangle with base x is equal to the area of a rectangle with width x and length double of width, then the altitude of the triangle is ________.

### Choices

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

a. | ||

b. | 2x | |

c. | 6x | |

d. | 4x |

## Question 620

### Question

MCQ▾Two chimneys 16 m and 13 m high stand upright on a ground. If their feet are 4 m apart, then the distance between their tops is ________.

### Choices

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

a. | 31 m | |

b. | 18 m | |

c. | 13 m | |

d. | 5 m |

## Question 621

### Question

MCQ▾The sides of a measure 6 cm, 8 cm and 10 cm. The area of the triangle is ________.

### Choices

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

a. | ||

b. | ||

c. | ||

d. | All of the above |

## Question 622

### Question

MCQ▾Dimpal earns Rs. 2100 per week working at an office. After taxes, her pay cheque is only 89 % of what she earned. What is the amount payable to Dimpal?

### Choices

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

a. | 1969.00 | |

b. | Rs. 1836.00 | |

c. | Rs. 1869.00 | |

d. | Rs. 1962.00 |