Practical Geometry  Lines and Angles (IMO Mathematics Olympiad Class 7): Questions 20  25 of 73
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Question number: 20
» Practical Geometry  Lines and Angles
Question
If an angle is its own complementary angle, then its measure is ________.
Choices
Choice (4)  Response  

a. 


b. 


c.  45° 

d. 


Question number: 21
» Practical Geometry  Lines and Angles
Question
In the figure PQ is parallel to RS. Which of the following statement is true?
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 22
» Practical Geometry  Lines and Angles
Question
An angle is less than two times of its complement, then the smaller angle is ________.
Choices
Choice (4)  Response  

a. 


b. 


c.  50° 

d.  30° 

Question number: 23
» Practical Geometry  Lines and Angles
Question
An angle is less than three times of its supplement, then the greater angle is ________.
Choices
Choice (4)  Response  

a. 


b.  56° 

c. 


d.  125° 

Question number: 24
» Practical Geometry  Lines and Angles
Question
If two lines a and b intersect each other Find the other angles ?
Choices
Choice (4)  Response  

a.  80°, 98°and85° 

b.  80°, 95°and 80° 

c.  85°, 95°and 85° 

d.  85°, 85°and 95° 

Question number: 25
» Practical Geometry  Lines and Angles
Question
In the figure, PQ is parallel to ST. AB is a straight line. Find .
Choices
Choice (4)  Response  

a. 


b. 


c.  98° 

d. 

