# Mathematics-Constructions [NSTSE (National Science Talent Search Exam- Unified Council) Class 9]: Questions 1 - 6 of 55

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## Question 1

Appeared in Year: *1960*

### Question

MCQ▾In the given figure, is inscribed in a circle with center O. If the length of the chord YZ is equal to the radius of the circle OY then = ________.

### Choices

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

a. | ||

b. | ||

c. | ||

d. |

## Question 2

### Question

MCQ▾Two sides of a triangle are 6 and 9 units. Which of the following length can be the length of the third side?

### Choices

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

a. | 15 cm | |

b. | 17 cm | |

c. | 2 cm | |

d. | 11 cm |

## Question 3

### Question

MCQ▾If the angles of a triangle are in the ratio 3: 2: 1 then the triangle is

### Choices

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

a. | Right angled isosceles | |

b. | Acute angled | |

c. | Right angled | |

d. | Obtuse angled |

## Question 4

## Question 5

### Question

MCQ▾Which of the following statement is correct?

### Choices

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

a. | The difference of any two sides is less than the third side | |

b. | A triangle cannot have two obtuse angles | |

c. | A triangle cannot have an obtuse angle and a right angle | |

d. | None of the above |

## Question 6

### Question

MCQ▾Two sides of an isosceles triangle are 5 cm and 9 cm. Then the length of third side is

### Choices

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

a. | 5 cm | |

b. | 9 cm | |

c. | 5 cm or 9 cm | |

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