An Encyclopædia of Architecture: Historical, Theoretical, & PracticalLongmans, Green, and Company, 1881 - 1395 Seiten |
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Seite 264
... draw the two right lines СА , СВ . Then ACB is an equilateral triangle . For the line AC is equal to the line AB , because these two lines are radii of the same circle BCD ; and the line BC is D C Fig . 235 equal to the line AB ...
... draw the two right lines СА , СВ . Then ACB is an equilateral triangle . For the line AC is equal to the line AB , because these two lines are radii of the same circle BCD ; and the line BC is D C Fig . 235 equal to the line AB ...
Seite 265
Historical, Theoretical, & Practical Joseph Gwilt Wyatt Angelicus Van Sandau Papworth. AB draw the equilateral triangle AFB , draw also the right line DF ; AC is equal to CB . In the two larger triangles DAF , DBF the sides DA , DB are ...
Historical, Theoretical, & Practical Joseph Gwilt Wyatt Angelicus Van Sandau Papworth. AB draw the equilateral triangle AFB , draw also the right line DF ; AC is equal to CB . In the two larger triangles DAF , DBF the sides DA , DB are ...
Seite 266
... draw the lines GA , GB . In the two triangles ACG , BDG , because the line AB is pa- rallel to the line CD , the ... draw GL perpendicular to the line AB , and from the point F draw FM perpendicular to the line GD . Since the line GL is ...
... draw the lines GA , GB . In the two triangles ACG , BDG , because the line AB is pa- rallel to the line CD , the ... draw GL perpendicular to the line AB , and from the point F draw FM perpendicular to the line GD . Since the line GL is ...
Seite 267
... draw the line GL ; this line is parallel to the line MF . Draw the line GF . The arcs GM , FL are equal by construction ; therefore the alternate angles r , s , which are measured by these arcs ( Defin . 9. ) , are equal ; and ...
... draw the line GL ; this line is parallel to the line MF . Draw the line GF . The arcs GM , FL are equal by construction ; therefore the alternate angles r , s , which are measured by these arcs ( Defin . 9. ) , are equal ; and ...
Seite 269
... Draw DG parallel to AF . Because the parallelogram AFGD is bisected by the diagonal FD ( Prop . 27. Corol . ) , the triangle AFD is half the paral- lelogram AFGD . But the parallelogram AFGD is equal to B C F G A D Fig . 262 . the ...
... Draw DG parallel to AF . Because the parallelogram AFGD is bisected by the diagonal FD ( Prop . 27. Corol . ) , the triangle AFD is half the paral- lelogram AFGD . But the parallelogram AFGD is equal to B C F G A D Fig . 262 . the ...
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