# IMO Level 1- Mathematics Olympiad (SOF) Class 9: Questions 426 - 430 of 929

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## Question number: 426

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MCQ▾

### Question

A circular park of 60 metre diameter has a circular path just inside the boundary of width 3 metre. The area of path is ________

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 427

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MCQ▾

### Question

Volume of a hemisphere is 27500 cubic cm. The total surface area is ________.

### Choices

Choice (4) Response

a.

9584.12 sq. cm

b.

4158.45 sq. cm

c.

6548.23 sq. cm

d.

5246.89 sq. cm

## Question number: 428

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MCQ▾

### Question

In the figure , and . Then K equals ________ Iven the Figure Line Xy Equal to XZ and XN Equal to XM Given the figure line xy equal to XZ and XN equal to XM and find the value of k

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 429

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MCQ▾

### Question

In the given figure, AD is the bisector of and. Then, are congruent by which criterion? Given the AD is the Bisector of a and AB is Equal to AC Given the AD is the bisector of A and AB is equal to AC find the triangle ADC and ADB are congruent by which criterion

### Choices

Choice (4) Response

a.

ASA

b.

SAS

c.

AAA

d.

All of the above

## Question number: 430

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MCQ▾

### Question

A cylinder and a cone have the same height and same radius of the base. The ratio between the volumes of the cylinder and the cone is ________

### Choices

Choice (4) Response

a.

b.

c.

d.