Mental AbilityBasic Geometry (NCO Cyber Olympiad Class 5): Questions 18  21 of 50
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Question number: 18
» Mental Ability » Basic Geometry
Question
The side of square increased from 4 cm to 12 cm. How much did the area of the square increase?
Choices
Choice (4)  Response  

a.  615 

b.  128 

c.  136 

d.  75 

Question number: 19
» Mental Ability » Basic Geometry
Question
Which of the following triangle is an acute angle (Diagram only for illustration)?
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 20
» Mental Ability » Basic Geometry
Question
Calculate the area of the shaded part:
Choices
Choice (4)  Response  

a.  50 

b.  32 

c.  42 

d.  60 

Question number: 21
» Mental Ability » Basic Geometry
Question
Which of the following triangle is an obtuse angle (Diagram for illustration)?
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 
