# Mathematics-Mensuration [NSTSE (National Science Talent Search Exam- Unified Council) Class 8]: Questions 1 - 8 of 101

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## Question 1

### Question

MCQ▾The area of a sector of a circle of radius 8 cm cut off by an arc which is 9.25 cm long is:

### Choices

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

b. | ||

c. | ||

d. |

## Question 2

### Question

MCQ▾The radius of a circle is 28 m, then the circumference of a circle is:

### Choices

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

a. | 176 m | |

b. | 14 m | |

c. | 56 m | |

d. | 84 m |

## Question 3

### Question

MCQ▾If the ratio of circumference of two circles is 9: 4 the ratio of their area is:

### Choices

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

a. | 81: 16 | |

b. | 4: 9 | |

c. | 3: 2 | |

d. | 16: 81 |

## Question 4

### Question

MCQ▾Each side of a cube is increased by 45%. Then the surface area of the cube increases by:

### Choices

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

b. | 30% | |

c. | 45% | |

d. | 145% |

## Question 5

### Question

MCQ▾If the altitude of an equilateral triangle is cm, its area is

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

b. | ||

c. | ||

d. |

## Question 6

### Question

MCQ▾When the circumference and area of a circle are numerically equal, then the diameter is numerically equal to:

### Choices

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

a. | ||

b. | Circumference | |

c. | Area | |

d. | 4 |

## Question 7

### Question

MCQ▾A circular grass lawn of 63 m in radius has a path 7 m wide running around it on the outside. The area of the path is

### Choices

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

b. | ||

c. | ||

d. |

## Question 8

### Question

MCQ▾The circumference of a circle is 88 m, then the area of the circle is:

### Choices

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

b. | ||

c. | ||

d. |