Divide by 5 with pi's
Divide by 5 with radicals
100

Pi 0.25/5

0.157079632679

100

R1/5

0.2

200

Pi 0.5/5

3.14159265358

200

R4/5

0.4

300

Pi/5

0.628318530717

300

R4/5

0.4

400

Pi 1.25/5

0.7853981

400

R8/5

0.565685424949

500

Pi2.5/5

1.570796326794

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