I suggest 90.
Chat with our AI personalities
Kind of hard to show in here but... Use five circles to form a regular pentagon, then place the other five circles outside the pentagon - so that each is the point of a triangle (with the other points of the triangle formed by the points of the pentagon.
If the two circles are tangent to each other,then it must be at the same point.
They're both shapes
No; tangent circles touch each other at one point but concentric circles cannot not touch.
The three vertices of a circle are at the same distance form each other. The circumference of a circle identifies all points which are at a given distance from a point (vertex).