After projection onto the (x₁, x₂) plane, the A’s, B’s, C’s, and D’s form four concentric triacontagons, inscribed in circles of radii a, b, c, and d.
Most of the class was at sea after the first week.
So for a local newspaper, a splash on a fatal crash is just the first of a series of reports.
Number four boat filled rapidly, but everybody was focusing fascinatedly on those blades aft.
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