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Shaan takes a piece of paper 10cm square, and cuts circular holes of radius 1cm in it, not overlapping, so that more than half the area of the paper is removed. What is the smallest number of holes that he could cut?
 Apr 25, 2020
 #1
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10cm square = 10 x10 = 100 cm2     (I think that is what you meant by 10 cm square)

 

pi r^2 = hole area = 3.14

 

1/2 of the paper would be   50 cm2

50/3.14 =50/3.14 = 15.9235668789808917   or 16 holes

 Apr 25, 2020
 #2
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i think the answer is 4

 Apr 25, 2020

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