Husoski
24 Tiles
Covering a circle with 24 1x1 square tiles. Blue dashed lines show tile boundaries. This just fits, as can be seen by the Pythagorean Theorem, applied to the triangle with sides labeled x, (y-r) and r. (x,y) are the coordinates of point F, so x=2, y=4. for the circle to be tangent to the x-axis and the segment GH requires r=5/2. So x:(y-r):r are 2:1.5:2.5, which is a 3:4:5 right triangle ratio.
24 Tiles
Covering a circle with 24 1x1 square tiles. Blue dashed lines show tile boundaries. This just fits, as can be seen by the Pythagorean Theorem, applied to the triangle with sides labeled x, (y-r) and r. (x,y) are the coordinates of point F, so x=2, y=4. for the circle to be tangent to the x-axis and the segment GH requires r=5/2. So x:(y-r):r are 2:1.5:2.5, which is a 3:4:5 right triangle ratio.