Text-book of Euclid's elements for the use of schools : books I - VI and XI (1900)
Hall, H. S. (Henry Sinclair), 1848-1934, Stevens, F. H. (Frederick Haller), 1853-1933 · MacMillan : London · leaf 469
Take HE, any other st. line drawn from AB to CD.Then HE, being oblique to the plane XY, is greater than theperp. HK. Ex. 1, p. 429. .•. HE is also greater than PQ. q.e.d. h.s.e. 2f 448 euclids elements. Definition. A parallelepiped is a solid figure boundedby three pairs of parallel plane faces.… … Let ABAB be a par**5*, of which ABCD, CDAB are oppositefaces. (i) Then all the faces shall be par™, and the opposite faces shallbe identically equal. For since the planes DA, AD are par1, xi. Def 15.and the plane DB meets them,.. the common sections AB and DC are par1. xi. 16. Similarly AD and BC…
Geometry · Mathematics
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