An Encyclopaedia of Architecture, Historical, Theoretical, & PracticalLongmans, Green, and Company, 1891 - 1443 pages |
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Results 6-10 of 75
Page 277
... PROPORTION . 935. DEFINITIONS . - 1. The ratio of one quantity to another is the number of times which the first contains the second ; thus the ratio of 12 to 3 is four , because 12 contains 3 four times ; or , more universally , ratio ...
... PROPORTION . 935. DEFINITIONS . - 1. The ratio of one quantity to another is the number of times which the first contains the second ; thus the ratio of 12 to 3 is four , because 12 contains 3 four times ; or , more universally , ratio ...
Page 298
... proportion to the sine , cosine , and radius . IV . BF : BC :: CD : CL , by which we find that the cosecant is a third proportion to the sine and radius . Observation 1. There are therefore three methods of resolving triangles , or the ...
... proportion to the sine , cosine , and radius . IV . BF : BC :: CD : CL , by which we find that the cosecant is a third proportion to the sine and radius . Observation 1. There are therefore three methods of resolving triangles , or the ...
Page 300
... proportion the cotangent of half tl given angle may be used instead of the tangent of the half sum of the unknown angles . Example . In the plane triangle ABC ( fig . 400. ) , Let AB = 345 ft . AC = 174-07 ft . LA 37 Ā° 20 ā² . Now , the ...
... proportion the cotangent of half tl given angle may be used instead of the tangent of the half sum of the unknown angles . Example . In the plane triangle ABC ( fig . 400. ) , Let AB = 345 ft . AC = 174-07 ft . LA 37 Ā° 20 ā² . Now , the ...
Page 301
... proportion : - As radius Is to either leg of the triangle , So is tangent of its adjacent angle To the other leg ; And so is secant of the same angle To the hypothenuse . For AB being the given leg in the right - angled triangle ABC ...
... proportion : - As radius Is to either leg of the triangle , So is tangent of its adjacent angle To the other leg ; And so is secant of the same angle To the hypothenuse . For AB being the given leg in the right - angled triangle ABC ...
Page 340
... proportion of the weight to the forces of t two threads in the case of equilibrium being established ; that is , supposing AB to expr the weight , AD will express the effort of the thread attached to the point A , and BD tl of the ...
... proportion of the weight to the forces of t two threads in the case of equilibrium being established ; that is , supposing AB to expr the weight , AD will express the effort of the thread attached to the point A , and BD tl of the ...
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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