# Circle (A_{43}): Reflection of (A_{16}) through M

### Definition

The reflection of (A_{16}) through M is the Archimedean circle (A_{43}) tangent to (O).
Let T be the point on CD beyond D such that CT = AB, then A_{43} lies on
the ninepoint circle of ATB and
on the line OM. [Bui 2007]

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