# IMO Level 1- Mathematics Olympiad (SOF) Class 9: Questions 422 - 425 of 929

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## Question number: 422

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MCQ▾

### Question

From each corner of a square of side 6 cm a quadrant of a circle of radius 2 cm is cut and also a circle of diameter 4 cm is cut as shown in the figure, then the area of the remaining portion of the square is ________ Given the Each Corner of a Square of Side 6 Cm Given the each corner of a square of side 6 cm a quadrant of a circle of radius 2 cm is cut and also a circle of diameter 4 cm is cut and find the area of the remaining portion of the square

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 423

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MCQ▾

### Question

A line passed through the point (3,6) and has gradient . Find the y-coordinate of a point on the line when x = 11. Find the Y-Coordinate of a Point on the Line when X = 11 Put two points in graph and find the y coordinate value

### Choices

Choice (4) Response

a.

14

b.

13

c.

15

d.

12

## Question number: 424

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MCQ▾

### Question

In a, the medians AD, BE and CF meet at G, then ________ Triangle ABC and Its Medians Triangle ABC and the medians AD, BE and CF meets at G

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 425

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MCQ▾

### Question

Volume of a hemisphere is 14564 cubic cm. The total surface area is ________

### Choices

Choice (4) Response

a.

3432.44 sq. cm

b.

1215.15 sq. cm

c.

6545.25 sq. cm

d.

4525.12 sq. cm