IMO Mathematics Olympiad Class 6: Questions 618  623 of 1049
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Question number: 618
Question
Number of arcs made by the diameter on a circle is ________.
Choices
Choice (4)  Response  

a.  3 

b.  1 

c.  2 

d.  4 

Question number: 619
Question
A square and a rectangular plot of land have same perimeter. If the square is of side 25 m and rectangle is of width 2 dam. Then area of rectangle is
Choices
Choice (4)  Response  

a.  500 

b.  600 

c.  160 

d.  1600 

Question number: 620
Question
The number of squares that are required to fill a rectangle of 512 cm by 108 cm if each square is of 8 cm, is
Choices
Choice (4)  Response  

a.  752 

b.  838 

c.  440 

d.  864 

Question number: 621
Question
A wire is in the shape of a square of perimeter 64 cm. A rectangle is formed with this wire such that its length is 20 cm. Then, the area of the rectangle is
Choices
Choice (4)  Response  

a.  240 

b.  880 

c.  256 

d.  None of the above 

Question number: 622
Question
Number of line segments possible with four collinear points is ________.
Choices
Choice (4)  Response  

a.  5 

b.  3 

c.  Infinite 

d.  6 

Question number: 623
Question
A circle is inscribed in a rectangle as shown. If the radius of the circle is 6 cm, then the perimeter of rectangle is
Choices
Choice (4)  Response  

a.  24 cm 

b.  56 cm 

c.  52 cm 

d.  58 cm 
