Bluey-green, white and transparent squares with a few odd bits of
shapes around the perimeter. But, how many squares are there of
each type in the complete circle? Study the picture and make an
estimate.
Blue and White
Age 11 to 14 Challenge Level
In the examples below identical squares of side one unit contain some circles shaded blue.
In which of the four examples is the shaded area greatest?
This problem is also available in French: Bleu et Blanc