# IMO Level 1- Mathematics Olympiad (SOF) Class 9: Questions 321 - 327 of 931

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## Question 321

### Question

MCQ▾

If in the following image angle PQR is 110˚ then what would be the angle PSR? Find the Value of Angle PSR

### Choices

Choice (4)Response

a.

120˚

b.

170˚

c.

140˚

d.

150˚

## Question 322

### Question

MCQ▾

If the purple angle is 40˚ and the yellow one is 30˚ what is the measure of aqua angle? Find the Measure of Aqua Angle

### Choices

Choice (4)Response

a.

110˚

b.

120˚

c.

130˚

d.

140˚

## Question 323

### Question

MCQ▾

What change in percent is made in the area of a rectangle by increasing its length by and breadth by ?

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 324

### Question

MCQ▾

In the figure, AD is the bisector of of , then ________ Given the Triangle ABC and if AD is Bisector of Angle A

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 325

### Question

MCQ▾

The distance between the points P (5,3) and Q (5,6) is calculated as

### Choices

Choice (4)Response

a.

4

b.

3

c.

-3

d.

-4

## Question 326

### Question

MCQ▾

If two medians of a triangle are equal, then the triangle is ________

### Choices

Choice (4)Response

a.

Equilateral triangle

b.

Right angle triangle

c.

Scalene triangle

d.

Isosceles triangle

## Question 327

### Question

MCQ▾

The base of a prism is a right angle triangle and the two sides containing the right angle are 8 cm and 15 cm. if its height is 20 cm, then the volume of the prism is ________

### Choices

Choice (4)Response

a.

160 c. cm.

b.

600 c. cm.

c.

300 c. cm.

d.

1200 c. cm.