## The Encyclopedia of Architecture, Historical, Theoretical, and Practical |

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Page 285

before observed , is that which has length , breadth , and thickness . 2. A

polyhedron is a

terminated by two ...

**SOLIDS**. Fig . 335 . Fig . 336 . 979. DEFINITIONS . — 1. A**solid**, as we havebefore observed , is that which has length , breadth , and thickness . 2. A

polyhedron is a

**solid**terminated by plane surfaces . 3. A prism is a**solid**terminated by two ...

Page 286

Because the

equal number of points disposed in the same ... For if the

similar , another

Because the

**solids**A , a are similar , the surfaces BAF , bay are composed of anequal number of points disposed in the same ... For if the

**solids**A , a were notsimilar , another

**solid**might be formed upon the line BF similar to the**solid**a .Page 288

Now the

base and half the height . Each pyramid , therefore , will be equal to one third part

of the product of the base , and half the height of the cube ; that is , the whole ...

Now the

**solid**content of half the cube is ( Prop . 99. ) equal to the product of thebase and half the height . Each pyramid , therefore , will be equal to one third part

of the product of the base , and half the height of the cube ; that is , the whole ...

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angle appears arch architect architecture base beam becomes bricks building built called cast cathedral centre century church circle colour columns common considered construction contained course covered curve depth describe diameter direction divided draw edifices effect employed equal erected examples experiments extremely face feet force four front give given greater half height horizontal houses inches iron Italy joints length less lime marble material means mouldings nearly necessary observed obtained original parallel period perpendicular piece placed plane portion practice 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 whereof whole wood