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

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Page 267

Whence the quadrilateral figure GLPM is a rectangle , its four

opposite to the side LG is equal to the

Remark .

Whence the quadrilateral figure GLPM is a rectangle , its four

**angles**being right**angles**. In the triangles GLF , FMG ... are identical . Wherefore the**angle**LFGopposite to the side LG is equal to the

**angle**FGM opposite to the side FM .Remark .

Page 268

G F L ; M B C D But the

to the alternato

...

G F L ; M B C D But the

**angle**x is equal to the alternate**angle**B , and the**angle**yto the alternato

**angle**C. Therefore , substituting B for x , and C for y , the three**angles**B , A , C are together equal to two right**angles**. COROLLARY . Hence , if...

Page 272

Let BTA ( fig . 273. ) be a tangent and TD a chord drawn from the point of contact

T ; the

being a right

Let BTA ( fig . 273. ) be a tangent and TD a chord drawn from the point of contact

T ; the

**angle**ATD is measured by half the ... In the triangle CML the**angle**Mbeing a right

**angle**, the two remaining**angles**are ( Prop . 22. ) equal to a right**angle**...### What people are saying - Write a review

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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 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