# IMO Level 1- Mathematics Olympiad (SOF) Class 9: Questions 287 - 293 of 929

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## Question number: 287

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MCQ▾

### Question

The volume of a sphere is the curved surface of its sphere is ________

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 288

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MCQ▾

### Question

The area of trapezium ABCD is ________ Given the ABCD is a Trapezium Given the ABCD is a trapezium find the area

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 289

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MCQ▾

### Question

is a point, which belongs to the line________.

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Choice (4) Response

a.

b.

c.

d.

## Question number: 290

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MCQ▾

### Question

If the coordinate of the two points are P (4, -5) and Q (-2,3) then ________

### Choices

Choice (4) Response

a.

-2

b.

-5

c.

-3

d.

-4

## Question number: 291

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MCQ▾

### Question

The radii of two cones are in ration 3: 1, their volumes are equal. Find the ratio of their heights.

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 292

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MCQ▾

### Question

A solid consists of a circular cylinder with an exact fitting right circular cone placed on the top. The height of a the cone is h. If the total volume of the solid is three times the volume of the cone, then the height of the cylinder is ________

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Choice (4) Response

a.

b.

c.

d.

## Question number: 293

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MCQ▾

### Question

The area of rhombus is and one of its diagonals is 8 cm. Its perimeter is ________

### Choices

Choice (4) Response

a.

b.

c.

d.