Higbee, F. G · New York, John Wiley & Sons · leaf 65
parallel to the planof the two given Hnes, nrn and no. Also draw pq and prparallel to mn and no. Find now where these lines, PQ andPR, which are parallel to the given lines, pierce H and V. PQpierces H at X and V at q. PR pierces V and y. Draw qyand extend it to T; also draw Tx. These are the H and… … 45. Special Cases. Pass a plane through a point parallel totwo given Hues: 1. When one of the lines is parallel to the G. L. 2. When one of the Hnes is parallel to the H or V. 3. When one Hne is parallel to H and the other is parallel to V. 4. Pass a plane through one Hne parallel to another. 46.…
Geometry, Descriptive
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
