# IMO Level 1- Mathematics Olympiad (SOF) Class 9: Questions 392 - 396 of 931

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## Question 392

### Question

MCQ▾The area of a quadrilateral, one of whose diagonals is 30 cm long and the perpendiculars from the other two vertices are 19 cm and 11 cm respectively is ________

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## Question 393

### Question

MCQ▾A cylindrical vessel 60 cm in diameter is partially filled with water. A sphere, 60 cm in diameter is gently dropped into the vessel. To what further height will water rise in the cylinder?

### Choices

Choice (4) | Response | |
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a. | 25 cm | |

b. | 15 cm | |

c. | 40 cm | |

d. | 30 cm |

## Question 394

### Question

MCQ▾DEF is an equilateral triangle of side. S, T and U are midpoints of DE, EF and DF respectively. The area of triangle STU is ________

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## Question 395

### Question

MCQ▾In parallelogram ABCD. The altitudes corresponding to the sides AB and AD are respectively 4 cm and 5 cm. Find AD.

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## Question 396

### Question

MCQ▾The sides BC, CA and AB of are produces in order to form exterior angles and, then is ________

### Choices

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d. |