IMO Mathematics Olympiad Class 9: Questions 323  328 of 919
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Question number: 323
Question
If the purple angle is 40˚ and the yellow one is 30˚ what is the measure of aqua angle?
Choices
Choice (4)  Response  

a.  140˚ 

b.  110˚ 

c.  120˚ 

d.  130˚ 

Question number: 324
Question
What change in percent is made in the area of a rectangle by increasing its length byand breadth by?
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 325
Question
In the figure, AD is the bisector of of, then ________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 326
Question
The distance between the points P (5, 3) and Q (5, 6) is calculated as
Choices
Choice (4)  Response  

a.  4 

b.  3 

c.  3 

d.  4 

Question number: 327
Question
If two medians of a triangle are equal, then the triangle is ________
Choices
Choice (4)  Response  

a.  Scalene triangle 

b.  Equilateral triangle 

c.  Right angle triangle 

d.  Isosceles triangle 

Question number: 328
Question
The base of a prism is a right angle triangle and the two sides containing the right angle are 8 cm and 15 cm. if its height is 20 cm, then the volume of the prism is ________
Choices
Choice (4)  Response  

a.  600 c. cm. 

b.  1200 c. cm. 

c.  300 c. cm. 

d.  160 c. cm. 
