IMO Mathematics Olympiad Class 6: Questions 640  641 of 1049
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Question number: 640
MCQ▾
Question
A rope is in the shape of a square of perimeter 48 cm. A rectangle is formed with this rope such that its length is 10 cm. Then, the area of the rectangle is
Choices
Choice (4)  Response  

a.  540 

b.  140 

c.  280 

d.  None of the above 

Question number: 641
MCQ▾
Question
Find the area of unshaded part of the figure.
Choices
Choice (4)  Response  

a.  70 sq. cm 

b.  20 sq. cm 

c.  55 sq. cm 

d.  80 sq. cm 
