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

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Page 250

Amongst the structures of the 15th century ( ex . cepting St. Mary at Esslingen ,

which will be hereafter mentioned ) were St. Catherine at Brandenburg , 1401 ,

by H. Brunsbergh , with nave and aisles of

Amongst the structures of the 15th century ( ex . cepting St. Mary at Esslingen ,

which will be hereafter mentioned ) were St. Catherine at Brandenburg , 1401 ,

by H. Brunsbergh , with nave and aisles of

**equal**height ; the choir of St. Mary at ... Page 265

One line is perpendicular to another when the two angles it makes with that other

line are

the angles CDA , CDB contain an

One line is perpendicular to another when the two angles it makes with that other

line 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 266

be the given line upon which it is required to describe a tria whose three sides

shall be

cumference BCD , and from the point B , with the radius BA , describe the

circumference ACF ...

be the given line upon which it is required to describe a tria whose three sides

shall be

**equal**. From the point A , with the radius AB , describe the cir .cumference BCD , and from the point B , with the radius BA , describe the

circumference ACF ...

Page 267

267 AB draw the equilateral triangle AFB , draw also the right line DF ; AC is

because they are the sides of an equilateral triangle ; the sides AF , BF are

for ...

267 AB draw the equilateral triangle AFB , draw also the right line DF ; AC is

**equal**w CB . In the two larger triangles DAF , DBF the sides DA , DB are**equal**,because they are the sides of an equilateral triangle ; the sides AF , BF are

**equal**for ...

Page 268

10 )

perpendicular to AB . Wherefore each angle is a right angle . 887. Prop . XII . If

two lines cut each other , the vertical or opposite angles are

AD ...

10 )

**equal**to two right angles ; and these two angles are**equal**, because CD isperpendicular to AB . Wherefore each angle is a right angle . 887. Prop . XII . If

two lines cut each other , the vertical or opposite angles are

**equal**. Let the linesAD ...

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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