KenSensei

If the radius of the circle is 4, then the diameter is 8. Therefore you need an 8 by 8 square cut outs out of 84 by 24 rectangular cardboard to make a circle. 8 by 8 square equals 1 circle 24 x (80 + 4) = 24 by 80, you have to discard the remaining 4 to m...