# NSTSE (National Science Talent Search Exam- Unified Council) Class 10: Questions 770 - 775 of 1484

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## Question number: 770

» Mathematics » Coordinate Geometry

### Question

Find the value of k if the area of triangle formed by is 18 sq units

### Choices

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

a. | -4 or 8 | |

b. | 1 | |

c. | -8 or 4 | |

d. | 2 or -4 |

## Question number: 771

» Mathematics » Coordinate Geometry

### Question

The area of formed by vertices is ________.

### Choices

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

a. | sq units | |

b. | sq units | |

c. | 14 sq units | |

d. | All of the above |

## Question number: 772

### Question

If A and B are acute in right angled then

### Choices

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

a. |
| |

b. |
| |

c. | 1 | |

d. | None of the above |

## Question number: 773

» Mathematics » Coordinate Geometry

### Question

The distance between the points and is

### Choices

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

a. | units | |

b. | units | |

c. | 11 units | |

d. | 10 units |

## Question number: 774

### Question

The top of a broken tree has its top end touching the ground at a distance 20 m from the bottom, the angle made by the broken end with the ground is . Then length of broken part = ________.

### Choices

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

a. | m | |

b. | m | |

c. | m | |

d. | m |

## Question number: 775

» Mathematics » Triangles

### Question

In a quadrilateral ABCD, AD = BC. If P, Q, R, S are mid points of AB, AC, CD and BD respectively. Then ________.

### Choices

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

a. | PQRS is a square | |

b. | PQRS is a rhombus | |

c. | PQRS is a rectangle | |

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