Marklin 2232 - Curved K-Track R2, 22.5deg (standard turnout curve)

Length 3/4 = 22° 30'.

These pieces are what you need with the standard Marklin 2261, 2262, 2263, 2265 and 2266 turnouts to get the spacing of 64.6mm.

Twenty-two and a half degrees.

This means 2 pieces are equal to 45 degrees, 4 pieces make a quarter circle, 8 pieces a half circle, in R2

One single piece.