Lines, Angles and Quadrilaterals (IMO Mathematics Olympiad (SOF) Class 9): Questions 57  61 of 126
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: 57
» Lines, Angles and Quadrilaterals
Question
XYZ is an equilateral triangle for side. J, K and L are midpoints of XY, YZ and XZ respectively. The area of triangle JKL is (in) ________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 58
» Lines, Angles and Quadrilaterals
Question
The supplementary angle of an angle is one fifth of itself. Then the angle of its supplement are________
Choices
Choice (4)  Response  

a.  150˚, 30˚ 

b.  160˚, 20˚ 

c.  160˚, 130˚ 

d.  150˚, 45˚ 

Question number: 59
» Lines, Angles and Quadrilaterals
Question
The supplementary angle of an angle is one third of itself. Then the angle of its supplement are________
Choices
Choice (4)  Response  

a.  120˚, 360˚ 

b.  60˚, 180˚ 

c.  135˚, 45˚ 

d.  60˚, 120˚ 

Question number: 60
» Lines, Angles and Quadrilaterals
Question
If a straight line meets two other straight lines so as to make the sum of the two interior angles on one side of the transversal less than two right angles, then the other straight lines extended infinitely, will meet ________ the transversal
Choices
Choice (4)  Response  

a.  On 

b.  On another side of 

c.  Can’t be determined 

d.  On that side of 

Question number: 61
» Lines, Angles and Quadrilaterals
Question
The measure of an angle is twice times the measure of its supplementary angle. Then the angles are________
Choices
Choice (4)  Response  

a.  40˚, 160˚ 

b.  18˚, 72˚ 

c.  50˚, 200˚ 

d.  120˚, 60˚ 
