# IMO Level 1- Mathematics Olympiad (SOF) Class 9: Questions 343 - 347 of 929

Access detailed explanations (illustrated with images and videos) to 929 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. Subscription can be renewed yearly absolutely FREE! View Sample Explanation or View Features.

Rs. 450.00 or

How to register?

## Question number: 343

Edit
MCQ▾

### Question

A spherical ball of lead, 3 cm in diameter is melted and recast into three spherical balls. The diameter of two of these is 1.5 cm and 2 cm respectively. The radius of the third ball is________.

### Choices

Choice (4) Response

a.

2.66 cm

b.

3 cm

c.

3.5 cm

d.

2.5 cm

## Question number: 344

Edit
MCQ▾

### Question

The sum of the interior angles of a polygon is three times the sum of its exterior angles. Then number of sides in a polygon is ________.

### Choices

Choice (4) Response

a.

5

b.

7

c.

8

d.

9

## Question number: 345

Edit
MCQ▾

### Question

Write the coordinate of each the points J, K, L, M, N and O from the figure Finding the Coordinate Values of the Various Points Different points in graph and find the coordinates

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 346

Edit
MCQ▾

### Question

In parallelogram ABCD. . The altitudes corresponding to the sides CD and AD are respectively 9 cm and 11 cm. Find AD. Given the ABCD is a Parallelogram and AB is 12 Cm Given the ABCD is a parallelogram and AB is 12 cm, AM is 9 cm and CN is 11 cm find AD

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 347

Edit
MCQ▾

### Question

ABC is triangle in which BE, CF are medians. If , and , then the area of is________ Given the ABC is Triangle in Which BE, CF Are Medians Given the ABC is triangle in which BE, CF are medians. If BE is 15 cm, CF is 36 cm find the area of Triangle ABC

### Choices

Choice (4) Response

a.

240

b.

120

c.

102

d.

360