◎◎◎ shape ⪢⪢
A _____ is a simple form like a square or circle.
http://qindex.info/i.php?x=14323
○○○ lenticular ⪢⪢
Lenticular galaxies are galaxies that appear to have a circle-like appearance. → lentil #astronomy
http://qindex.info/i.php?x=20574
• 33 Graphing Conic Sections Part 1: Circles
Graphing Conic Sections Part 1: Circles
http://qindex.info/i.php?x=5264
• Circle
center, radius, diameter, chord, arc, sector, segment, circumference, perimeter, secant, subtended #short #math
http://qindex.info/i.php?x=32638
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