IMO- Mathematics Olympiad Class 9: Questions 430 - 434 of 919

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Question number: 430

» Triangles and Circles

MCQ▾

Question

In the figure XY¯=XZ¯ , YXM=60˚ and XN¯=XM¯ . Then K equals ________

iven the figure line xy equal to XZ and XN equal to XM

Iven the Figure Line Xy Equal to XZ and XN Equal to XM

Given the figure line xy equal to XZ and XN equal to XM and find the value of k

Choices

Choice (4) Response
a.

71°2

b.

10°

c.

30°

d.

121°2

Question number: 431

» Triangles and Circles

MCQ▾

Question

In the given figure, AD is the bisector of A and AB=AC . Then ADC , ADB are congruent by which criterion?

Given the AD is the bisector of A and AB is equal to AC

Given the AD Is the Bisector of a and AB Is Equal to AC

Given the AD is the bisector of A and AB is equal to AC find the triangle ADC and ADB are congruent by which criterion

Choices

Choice (4) Response
a.

SAS

b.

AAA

c.

ASA

d. All of the above

Question number: 432

» Surface Area and Volumes

MCQ▾

Question

A cylinder and a cone have the same height and same radius of the base. The ratio between the volumes of the cylinder and the cone is ________

Choices

Choice (4) Response
a.

1:2

b.

2:1

c.

3:1

d.

1:3

Question number: 433

» Surface Area and Volumes

MCQ▾

Question

The edge of a cube is 20 cm. how many small cubes of 5 cm edge can be formed from this cube?

Choices

Choice (4) Response
a.

32

b.

64

c.

100

d.

4

Question number: 434

» Surface Area and Volumes

MCQ▾

Question

A corn cob somewhat like a cone, has the radius of the broadest end as 2.1 cm and length as 20 cm. If each 1 cm 2 of the surface of the cob carries an average of 3 grains, find how many grains you would find on the entire cob?

 Given the corn cob somewhat like a cone

Given the Corn Cob Somewhat Like a Cone

Given the corn cob somewhat like a cone, has the radius of the broadest end as 2.1 cm and length as 20 cm and find how many grains you would find on the entire cob

Choices

Choice (4) Response
a.

670 grains

b.

881 grains

c.

980 grains

d.

550 grains

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