IMO Mathematics Olympiad (SOF) Class 9: Questions 159  163 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: 159
» 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 

Question number: 160
» Lines, Angles and Quadrilaterals
Question
The measure of an angle is three times the measure of its supplementary angle. Then the angles are________
Choices
Choice (4)  Response  

a.  28˚, 72˚ 

b.  26˚, 154˚ 

c.  50˚, 100˚ 

d.  45˚, 135˚ 

Question number: 161
» Lines, Angles and Quadrilaterals
Question
In the given figure . Which of the following must be true?
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 162
» Lines, Angles and Quadrilaterals
Question
If the bisectors of two adjacent angles A and B of a quadrilateral ABCD intersects at a point O such that , then value of k is ________
Choices
Choice (4)  Response  

a.  3 

b.  4 

c.  5 

d.  2 

Question number: 163
» 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. 

