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

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Page 275

Now the

the base BC . Produce BC both ways ; through the point A draw FG parallel to BC

, and raise the two perpendiculars BF , CG . Because the rectangle BFGC and ...

Now the

**surface**of the triangle is equal to half the product of the height AD andthe base BC . Produce BC both ways ; through the point A draw FG parallel to BC

, and raise the two perpendiculars BF , CG . Because the rectangle BFGC and ...

Page 318

PROJECTION OF

lines projected on vertical and horizontal planes may be applied to plane

plane ...

PROJECTION OF

**SURFACES**. 1134. What has been said in respect of rightlines projected on vertical and horizontal planes may be applied to plane

**surfaces**; thus , from the**surface**ABCD ( fig . 463. ) , parallel to an hori . zontalplane ...

Page 335

Required the convex

50 feet and the diameter of its base 8 ) feet . Here , 8.5 * 3.1416 x 50 : 2 = 667.5 ,

the convex

Required the convex

**surface**of a cone or circular pyramid whose slant height is50 feet and the diameter of its base 8 ) feet . Here , 8.5 * 3.1416 x 50 : 2 = 667.5 ,

the convex

**surface**required . 1233. PROBLEM III . To find the**surface**of the ...### 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