 | Bennett Hooper Brough - Mine surveying - 1920 - 510 pages
...meeting CD produced, at G. Join A G. The method depends upon Euclids' theorem that triangles on the same base and between the same parallels are equal to one another. By using a parallel ruler and a pricker the drawing in of all the constructional lines, except the... | |
 | Richard Fitzpatrick - Mathematics - 2005 - 298 pages
...equal to one another.]15 Thus, triangle ABC is equal to triangle DEC. Thus, triangles which are on the same base and between the same parallels are equal to one another. (Which is) the very thing it was required to show. 15This is an additional common notion. Xrf H A В... | |
| |
Parallelograms upon the same base and between the same parallels, are equal to one another. 
