IMO Level 1- Mathematics Olympiad (SOF) Class 9: Questions 289 - 295 of 929

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Question number: 289

» Coordinate Geometry

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MCQ▾

Question

is a point, which belongs to the line________.

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 290

» Coordinate Geometry

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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

» Surface Area and Volumes

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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

» Surface Area and Volumes

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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 ________

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 293

» Surface Area and Volumes

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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.

Question number: 294

» Triangles and Circles

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MCQ▾

Question

Centroid of a triangle is the point of concurrency of its ________

Choices

Choice (4)Response

a.

Triangle

b.

Perpendicular bisectors

c.

Medians

d.

Angle

Question number: 295

» Surface Area and Volumes

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MCQ▾

Question

216 plastic balls each of radius r are melted together to from one big sphere of radius R. then the ratio of surface area of the big sphere to that of a ball is ________

Choices

Choice (4)Response

a.

9

b.

36

c.

d.

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