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## Main Question or Discussion Point

Hey all,

I need some help rearranging for R.

O=R{1-Cos(28.65S/R)}

For those curious, its a Horizontal Sightline Offset formula used in geometric road design.

thanks

I need some help rearranging for R.

O=R{1-Cos(28.65S/R)}

For those curious, its a Horizontal Sightline Offset formula used in geometric road design.

thanks