Laws
   Book
 1 4    |      very little stone–pine or plane–wood, which shipwrights


Philebus
   Part
 2 Text |     lines and circles, and the plane or solid figures which are


The Republic
   Book
 3 7    |       mistake? he said. ~After plane geometry, I said, we proceeded
 4 7    |       began with a geometry of plane surfaces? ~Yes, I said. ~
 5 9    |     number of length will be a plane figure. ~Certainly. ~And
 6 9    |   raise the power and make the plane a solid, there is no difficulty


Theaetetus
   Part
 7 Text |        squares the equilateral plane numbers, were called by


Timaeus
   Part
 8 Intro|       contained in planes, and plane rectilinear figures are
 9 Intro|      resting on a quadrangular plane surface, and composed of
10 Intro|        solid angle out of four plane angles—six of these angles
11 Text |    kinds of mirrors, first the plane, secondly the concave; and
12 Text | contained in planes; and every plane rectilinear figure is composed
13 Text |        make out of every three plane angles one solid angle,
14 Text |  nearest to the most obtuse of plane angles; and out of the combination
15 Text |        solid angle out of four plane angles, and out of six such
16 Text |       of them included in five plane equilateral triangles, having
17 Text |       the combination of three plane right angles; the figure
18 Text | composed is a cube, having six plane quadrangular equilateral
19 Text |      formed out of either, the plane equilateral quadrangle has