Lines, Angles and Quadrilaterals (IMO Mathematics Olympiad Class 9): Questions 49  53 of 126
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Question number: 49
» Lines, Angles and Quadrilaterals
Question
The measurement of a window is , if 12 doors are to be fixed in that window in four rows, measurements of each door should be________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 50
» Lines, Angles and Quadrilaterals
Question
If two complementary angles are in the ratio 17: 13, then the angles are________
Choices
Choice (4)  Response  

a.  25˚, 65˚ 

b.  55˚, 35˚ 

c.  60˚, 30˚ 

d.  51˚, 39˚ 

Question number: 51
» Lines, Angles and Quadrilaterals
Question
In the figure line a line b line c. their transversal line t1 and line t2, cut them at point X, Y, Z and J, K, L respectively. Point Y is the midpoint of segment XZ. If find and
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 52
» Lines, Angles and Quadrilaterals
Question
The supplement of an angle is 50 more than six times its complement. Find the measure of the angle
Choices
Choice (4)  Response  

a.  65˚ 

b.  56˚ 

c.  82˚ 

d.  38˚ 

Question number: 53
» Lines, Angles and Quadrilaterals
Question
The angles of a triangle are in the ratio . The triangle is ________
Choices
Choice (4)  Response  

a.  Right 

b.  Acute 

c.  Isosceles 

d.  Scalene 
