The Elements of Geometry: Or, The First Six Books, with the Eleventh and Twelfth, of Euclid |
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Σελίδα 163
4 ) to the plane in which they are , that is , the plane B H. Therefore A F is perpendicular to the plane B H. Where- fore , from the given point A , above the plane BH , the straight line A F is drawn perpendicular to it .
4 ) to the plane in which they are , that is , the plane B H. Therefore A F is perpendicular to the plane B H. Where- fore , from the given point A , above the plane BH , the straight line A F is drawn perpendicular to it .
Σελίδα 165
either on the side of FH or E G. Let them be produced on the side of F H , and meet in the point K. E B K H D Because the straight line EFK is in the plane AB ( XI . 1 ) . Therefore the point K is in the plane A B. For the same reason ...
either on the side of FH or E G. Let them be produced on the side of F H , and meet in the point K. E B K H D Because the straight line EFK is in the plane AB ( XI . 1 ) . Therefore the point K is in the plane A B. For the same reason ...
Σελίδα 166
lines drawn in one of the planes , at right angles to their common section , are also at right angles ( XI . Def . 4 ) to the other plane ; and any straight line F G in the plane D E , which is at right angles to CE , the common section ...
lines drawn in one of the planes , at right angles to their common section , are also at right angles ( XI . Def . 4 ) to the other plane ; and any straight line F G in the plane D E , which is at right angles to CE , the common section ...
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Πληροφορίες βιβλιογραφίας
| Τίτλος | The Elements of Geometry: Or, The First Six Books, with the Eleventh and Twelfth, of Euclid Cassell's edition of Euclid Cassell's educational works |
| Συγγραφέας | Euclid |
| Έκδοση | 82 |
| Εκδότης | Cassell, Petter, and Galpin, 1859 |
| Μέγεθος | 212 σελίδες |
| Εξαγωγή αναφοράς | BiBTeX EndNote RefMan |