What is the smallest number of circles with a radius of 1 cm you need to take to completely

What is the smallest number of circles with a radius of 1 cm you need to take to completely cover a square with a side of 2 cm?

To begin with, draw a square with a side of 2 cm.All the sides of a square are equal, therefore each side will be 2 cm.After we have drawn a square, we put a compass in the middle of one of the sides of the square and get a circle with a diameter of 2 cm.With the rest of the sides we do same. Because a square has 4 sides, therefore 4 circles are needed to completely cover a square with a side of 2 cm.



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