An Encyclopaedia of Architecture, Historical, Theoretical, and PracticalLongmans, Green, 1876 - 1395 pages |
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Page 266
... parallel lines , it is also per- pendicular to the other . Let AB , CD ( fig . 247. ) be two parallel lines : if the line FG makes right angles with CD , it will also make right angles with AB . Take at pleasure GC equal to GD ; at the ...
... parallel lines , it is also per- pendicular to the other . Let AB , CD ( fig . 247. ) be two parallel lines : if the line FG makes right angles with CD , it will also make right angles with AB . Take at pleasure GC equal to GD ; at the ...
Page 267
... parallel . Let the alternate angles AFG , FGD ( fig . 251. ) be equal ; the lines AB , GD are parallel . If the line AB is not parallel to the line GD , another line , as NH , may be drawn through the point F parallel to GD . But this ...
... parallel . Let the alternate angles AFG , FGD ( fig . 251. ) be equal ; the lines AB , GD are parallel . If the line AB is not parallel to the line GD , another line , as NH , may be drawn through the point F parallel to GD . But this ...
Page 273
... parallel chords intercept equal arcs . If the two chords AB , CD ( fig . 278. ) are parallel , the arcs AC , BD are equal . Draw the right line BC . G G B R D D Because the lines AB , CD are parallel , the alternate angles ABC , BCD are ...
... parallel chords intercept equal arcs . If the two chords AB , CD ( fig . 278. ) are parallel , the arcs AC , BD are equal . Draw the right line BC . G G B R D D Because the lines AB , CD are parallel , the alternate angles ABC , BCD are ...
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angle appears arch architect architecture axis base beam becomes bricks building built called cathedral centre century church circle colour columns common considered construction contained course covered curve describe diameter direction divided draw edifices effect employed equal erected examples experiments extremely face feet figure force four front give given greater half horizontal houses inches iron Italy joints length less lime material means mouldings nave nearly necessary observed obtained parallel period perpendicular piece placed plane portion practice principal produced Prop proportion quarries radius remains respect Roman roof round says side similar solid square stone strength style supposed surface temple thickness timber tower triangle upper vault vertical walls weight whereof whole wood