IMO Mathematics Olympiad (SOF) Class 7: Questions 576  578 of 1012
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Question number: 576
Question
A triangle whose lengths of sides are 5 cm, 12 cm and 13 cm. The triangle is ________.
Choices
Choice (4)  Response  

a.  Triangle is not formed 

b.  Acuteangled triangle 

c.  Obtuseangled triangle 

d.  Rightangled triangle 

Question number: 577
» Practical Geometry  Lines and Angles
Question
One of the exterior angle of a triangle is , interior opposite angles are in ratio 3: 2. The angles of triangle are
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 578
» Practical Geometry  Lines and Angles
Question
In the adjoining figure, ABCD is a square, BCF is an equilateral triangle and AEDF is a rhombus. Find .
Choices
Choice (4)  Response  

a. 


b. 


c. 


d.  None of the above 
