## An Encyclopaedia of Architecture, Historical, Theoretical, & Practical |

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Page 33

... without remainder in a correct measurement of the pyramids of Geezeh . Thus ,

he says , the

, the base 448 ; and that of base :

... without remainder in a correct measurement of the pyramids of Geezeh . Thus ,

he says , the

**perpendicular**height of the great pyramid is exactly 280 of such ells, the base 448 ; and that of base :

**perpendicular**height :: slant height : base . Page 265

One line is

line are equal : thus , the line CD ( fig . 297. ) is

the angles CDA , CDB contain an equal number of degrees . 19. Two lines are ...

One line is

**perpendicular**to another when the two angles it makes with that otherline are equal : thus , the line CD ( fig . 297. ) is

**perpendicular**to the line AB , ifthe angles CDA , CDB contain an equal number of degrees . 19. Two lines are ...

Page 267

From the point C describe an arc of a circle which shall cut the line AB in two

points F and G. Then bisect the line FG , and to D , the point of division , draw the

line CD : this line is

From the point C describe an arc of a circle which shall cut the line AB in two

points F and G. Then bisect the line FG , and to D , the point of division , draw the

line CD : this line is

**perpendicular**to the line AB . Draw the lines CF , CG . Page 268

be

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 ...

be

**perpendicular**to the line AB , the angle CDA is a r angle , and also the angleCDB . 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 ...

Page 273

bisect it , and from the point of division D raise a

pass through the centre , and consequently , if it be bisected , the point of division

will be the centre . If the centre of the circle be not in the line FG , it must be ...

bisect it , and from the point of division D raise a

**perpendicular**FG : this line willpass through the centre , and consequently , if it be bisected , the point of division

will be the centre . If the centre of the circle be not in the line FG , it must be ...

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angle appears arch architect architecture base beam becomes bricks building built called carried cast cathedral cement centre century church circle colour columns common considered construction contains course covered curve describe diameter direction divided draw effect employed equal erected examples face feet foot force four front give given greater ground half height horizontal inches iron Italy joints length less lime marble material means mouldings nearly necessary observed obtained ornaments parallel period perpendicular placed plane portion produced Prop proportion quarries radius remains respect Roman roof says side similar solid square stone strength style supposed surface temple thickness timber tons tower triangle upper usually vault vertical walls whole wood