IMO- Mathematics Olympiad Class 9: Questions 287 - 292 of 919

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Question number: 287

» Triangles and Circles

MCQ▾

Question

The ABC and BDC are right angles. If AD=9cm , DC=16cm and AB=15cm , then the length of BD is ________

Given the ABC and BDC are right angles

Given the ABC and BDC Are Right Angles

Given the ABC and BDC are right angles, Ad is 9 cm, DC is 16 cm and AB is 15 cm, then Find the length of BD

Choices

Choice (4) Response

a.

25 cm

b.

15 cm

c.

12 cm

d.

16 cm

Question number: 288

» Surface Area and Volumes

MCQ▾

Question

The volume of a sphere is 8821×353cm3 the curved surface of its sphere is ________

Choices

Choice (4) Response

a.

12400cm2

b.

16400cm2

c.

15400cm2

d.

18400cm2

Question number: 289

» Triangles and Circles

MCQ▾

Question

The area of trapezium ABCD is ________

Given the ABCD is a trapezium

Given the ABCD Is a Trapezium

Given the ABCD is a trapezium find the area

Choices

Choice (4) Response

a.

130cm2

b.

190cm2

c.

160cm2

d.

135cm2

Question number: 290

» Coordinate Geometry

MCQ▾

Question

(2, 1) is a point, which belongs to the line________.

Choices

Choice (4) Response

a.

xy=1

b.

x=y

c.

y=x+1

d.

2y=x

Question number: 291

» Coordinate Geometry

MCQ▾

Question

If the coordinate of the two points are P (4, -5) and Q (-2, 3) then (ordinateofP)(ordinateofQ)is ________

Choices

Choice (4) Response

a.

-2

b.

-3

c.

-5

d.

-4

Question number: 292

» Surface Area and Volumes

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.

1:3

b.

1:9

c.

1:2

d.

1:5

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