IMO- Mathematics Olympiad Class 9: Questions 282 - 286 of 919

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Question number: 282

» Lines, Angles and Quadrilaterals

MCQ▾

Question

Two regular polygons are such that the ratio between their no. of sides is 1: 2 and the ratio of measures of their interior angles is 3: 4. Find the number of sides of each polygon.

Choices

Choice (4) Response

a.

7,14

b.

4,8

c.

6,12

d.

5,10

Question number: 283

» Triangles and Circles

MCQ▾

Question

In XYZ the medians XC, YB and ZA pass through O. If YO=14 , then YB is ________

Given the triangle XYZ the medians XC, YB and ZA pass through O

Given the Triangle XYZ the Medians XC, YB and ZA Pass Through O

Given the triangle XYZ the medians XC, YB and ZA pass through O. if YO = 14, then find YB

Choices

Choice (4) Response

a.

19

b.

11

c.

26

d.

21

Question number: 284

» Triangles and Circles

MCQ▾

Question

In the figure XY=YZ , XM=XZ and MN XY . If the exterior angle XZK is 144˚ , then the angle NMX is ________

Given XY=YZ, XM=XZ and MN is parallel to XY Exterior angle XZK

Given XY = YZ, XM = XZ and MN Is Parallel to XY Exterior Angle XZK

Given XY = YZ, XM = XZ and MN is parallel to XY. If the exterior angle XZK is 144 find the angle NMX

Choices

Choice (4) Response

a.

36°

b.

65°

c.

24°

d.

46°

Question number: 285

» Surface Area and Volumes

MCQ▾

Question

The number of spherical balls each 4 cm in diameter be made out of a rectangular solid 10cm×16cm×22cm is ________

Choices

Choice (4) Response

a.

107

b.

109

c.

102

d.

105

Question number: 286

» Surface Area and Volumes

MCQ▾

Question

The ratio between the perimeter and breadth of rectangle is 6:1 . If the area of the rectangle is 116 sq. cm. then length of the rectangle is ________

Choices

Choice (4) Response

a.

154cm

b.

124cm

c.

174cm

d.

114cm

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