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Draw three circles C1,C2,and C3 so that each circle has different radius.
Select C1 and C2, then draw two tangent lines of those circles as below.
Repeat the same process for (C2 and C3) and (C3 and C1). Find the relation among three intersection points. |
How to use the appletTo move circle, drag the center points. To change the radius, drag the circle. |