An Encyclopaedia of Architecture, Historical, Theoretical, & PracticalLongmans, Green, and Company, 1891 - 1443 pages |
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Page 264
... 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 265
... angle LGM . If the are NR , for example , be an are of 40 degrees , the angle LGM is an angle of 40 degrees . 13. There are three kinds of angles ( fig . 226. ) : a right angle ( 1 ) , which is an angle of 90 degrees ; an obtuse angle ...
... angle LGM . If the are NR , for example , be an are of 40 degrees , the angle LGM is an angle of 40 degrees . 13. There are three kinds of angles ( fig . 226. ) : a right angle ( 1 ) , which is an angle of 90 degrees ; an obtuse angle ...
Page 266
... angle subtended or contained them equal are identical . In the two triangles BAC , FDG ( fig . 236. ) , if the side DF be equal to the side A and the side DG equal to the side AC , and also the angle at D equal to the angle at A , the ...
... angle subtended or contained them equal are identical . In the two triangles BAC , FDG ( fig . 236. ) , if the side DF be equal to the side A and the side DG equal to the side AC , and also the angle at D equal to the angle at A , the ...
Page 267
... angle CDA is equal to the angle CDB , and consequently ( Defin . 11. ) the line CD is perpendicular to the line AB . line . 883. PROF . VIII . From a given point in a right line to raise a perpendicular upon that 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 . line . 883. PROF . VIII . From a given point in a right line to raise a perpendicular upon that From the point C ( fig ...
Page 268
... angle CDA is a rig 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 rig 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 describe diameter dome Doric order draw edifices ellipsis employed entablature equal erected examples extrados feet flange front girder Gothic granite half height horizontal inches joints length lime limestone marble material mortar mouldings nave obtained oolite ornaments palace parallel parallelogram perpendicular piers placed plane plates portico Portland stone Prop proportion pyramid quarries radius rectangle ribs right angles right line Roman Roman architecture Rome roof sand 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 whereof width wood