# IMO Level 1- Mathematics Olympiad (SOF) Class 8: Questions 484 - 489 of 1042

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## Question 484

### Question

MCQ▾The surface areas of the six faces of a rectangular solid are 1,1, 9,9, 25 and 25 square centimeters. The volume of the solid, in cubic centimeters is________.

### Choices

Choice (4) | Response | |
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d. |

## Question 485

### Question

MCQ▾In the given figure PQRS is a square inscribed in a circle with center O and radius r. The total area of shaded region is________.

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## Question 486

### Question

MCQ▾The dimensions of an open box are 60 cm, 50 cm and 33 cm. Its thickness is 3 cm. If 1 cubic cm of metal used in the box weights 0.5 gm, find the weight of the box.

### Choices

Choice (4) | Response | |
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a. | 13 kg | |

b. | 13.860 kg | |

c. | 12.11 kg | |

d. | 14.56 kg |

## Question 487

### Question

MCQ▾The volume of a cube is 343, its surface area is________.

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## Question 488

### Question

MCQ▾A cylinder whose cross section is an ellipse is called ________ cylinder.

### Choices

Choice (4) | Response | |
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a. | Parabolic | |

b. | Hyperbolic | |

c. | Elliptic | |

d. | Question does not provide sufficient data or is vague |

## Question 489

### Question

MCQ▾If a wire is bent into the shape of a square, then the area of the square is 64 sq. cm. When the wire is bent into a semicircular shape, then the area of the semi-circle will be________.

### Choices

Choice (4) | Response | |
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d. |