IMO Mathematics Olympiad Class 9: Questions 282  286 of 919
Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 919 questions. Access all new questions we will add tracking exampattern and syllabus changes. View Sample Explanation or View Features.
Rs. 450.00 or
Question number: 282
» Lines, Angles and Quadrilaterals
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. 


b. 


c. 


d. 


Question number: 283
Question
In the medians XC, YB and ZA pass through O. If , then YB is ________
Choices
Choice (4)  Response  

a.  19 

b.  11 

c.  26 

d.  21 

Question number: 284
Question
In the figure , and . If the exterior angle XZK is , then the angle NMX is ________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 285
Question
The number of spherical balls each 4 cm in diameter be made out of a rectangular solid is ________
Choices
Choice (4)  Response  

a.  107 

b.  109 

c.  102 

d.  105 

Question number: 286
Question
The ratio between the perimeter and breadth of rectangle is . If the area of the rectangle is 116 sq. cm. then length of the rectangle is ________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 

