An Encyclopaedia of Architecture, Historical, Theoretical, and PracticalLongmans, Green, 1876 - 1395 pages |
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Page 262
... angle . An angle is commonly expressed by three letters , and it is usual to place in the middle that letter which marks the point whence the lines diverge ; thus , we say the angle BAC or DAF ( fig . 224. ) , and not the angle ABC or ...
... angle . An angle is commonly expressed by three letters , and it is usual to place in the middle that letter which marks the point whence the lines diverge ; thus , we say the angle BAC or DAF ( fig . 224. ) , and not the angle ABC or ...
Page 263
... angle LGM . If the arc NR , for example , be an arc of 40 degrees , the angle LGM is an angle of 40 degrees . 10. There are three kinds of angles ( g . 226. ) : a right angle ( I ) , which is an angle of 90 degrees ; an obtuse angle ...
... angle LGM . If the arc NR , for example , be an arc of 40 degrees , the angle LGM is an angle of 40 degrees . 10. There are three kinds of angles ( g . 226. ) : a right angle ( I ) , which is an angle of 90 degrees ; an obtuse angle ...
Page 264
... angle subtended or contained by them equal are identical . In the two triangles BAC , FDG ( fig . 236. ) , if the side DF be equal to the side AB , and the side DG equal to the side AC , and also the angle at D equal to the angle at A ...
... angle subtended or contained by them equal are identical . In the two triangles BAC , FDG ( fig . 236. ) , if the side DF be equal to the side AB , and the side DG equal to the side AC , and also the angle at D equal to the angle at A ...
Page 265
... angle CDA is equal to the angle CDB , and consequently ( Defin . 11. ) the line CD is perpendicular to the line AB . 883. PROP . VIII . From a given point in a right line to raise a perpendicular upon that line . From the point C ( fig ...
... angle CDA is equal to the angle CDB , and consequently ( Defin . 11. ) the line CD is perpendicular to the line AB . 883. PROP . VIII . From a given point in a right line to raise a perpendicular upon that line . From the point C ( fig ...
Page 266
... angle CDA is a right angle , and also the angle CDB . For the line CD , meeting the line AB , forms with it two angles , which are together ( Prop . 10. ) equal to two right angles ; and these two angles are equal , because CD is ...
... angle CDA is a right angle , and also the angle CDB . For the line CD , meeting the line AB , forms with it two angles , which are together ( Prop . 10. ) equal to two right angles ; and these two angles are equal , because CD is ...
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Common terms and phrases
15th century aisles arch architect architecture axis base beam breadth bricks building built called cast iron Castle cathedral cement centre of gravity chapel choir church circle circumference colour columns construction Corinthian order cube cubic foot curve decorated depth describe diameter dome Doric order draw edifices ellipsis employed entablature equal erected examples extrados feet girder given Gothic granite half horizontal inches intercolumniations joints length lime limestone marble mortar mouldings nave oolite ornaments palace parallel parallelogram perpendicular piece piers placed plane plates portico Portland stone Prop proportion pyramid quarries radius rectangle ribs right angles right line Roman Roman architecture Rome roof sandstone side similar sofite solid square stone strength style surface tangent temple thickness tiles timber tons tower transepts triangle upper vault vertical Vitruvius voussoirs walls weight whereof width wood