# IMO Level 1- Mathematics Olympiad (SOF) Class 10: Questions 862 - 872 of 968

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## Question 862

## Question 863

## Question 864

## Question 865

## Question 866

## Question 867

### Question

MCQ▾An observer tall is away from a chimney. The angle of elevation of he top of the chimney from her eyes is the height of the chimney is________.

### Choices

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

a. | 9.86 | |

b. | 0.52 | |

c. | 9.02 | |

d. | 2.5 |

## Question 868

### Question

MCQ▾If then value of is________

### Choices

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

b. | ||

c. | ||

d. |

## Question 869

## Question 870

### Question

MCQ▾The top of two poles of height and are connected by a wire. If the wire makes an angle of with horizontal, then the length of the wire is________

### Choices

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

b. | ||

c. | ||

d. |

## Question 871

### Question

MCQ▾The length of a string between a kite and a point on the ground is . If the string makes an angle with level ground such that how high is the kite?

### Choices

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

a. | 44.96m | |

b. | ||

c. | ||

d. | 76.96m |

## Question 872

### Question

MCQ▾The angles of depression of two ships from the top of a lighthouse are towards east. If the ship are 50m apart, the height of the lighthouse is________.

### Choices

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

a. | ||

b. | ||

c. | ||

d. |