The Elements of Euclid |
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The preceding Demonstration is the Analysis of this Problem , A parallelogram AC which has a given angle ABC being given in magnitude , and the excefs of the fquare of BC one of its fides above the fquare of the other BA being given ...
The preceding Demonstration is the Analysis of this Problem , A parallelogram AC which has a given angle ABC being given in magnitude , and the excefs of the fquare of BC one of its fides above the fquare of the other BA being given ...
Página 441
i BC , and because the angle ABL is equal to EFG , the triangle ABL is equiangular to EFG . and the parallelogram AC ... Because the excefs of the fquare of BC above a given space has a given ratio to the fquare of BA , let the ...
i BC , and because the angle ABL is equal to EFG , the triangle ABL is equiangular to EFG . and the parallelogram AC ... Because the excefs of the fquare of BC above a given space has a given ratio to the fquare of BA , let the ...
Página 442
Dat . fquare of BF ; FB , BC are each of them given f . and the ratio of FB to BA is given ; therefore AB , BC are given . 8. 22. 6 . h . 1. 6 . k . 14. 5 . The Compofition is as follows . N Let GHK be the given angle to which the angle ...
Dat . fquare of BF ; FB , BC are each of them given f . and the ratio of FB to BA is given ; therefore AB , BC are given . 8. 22. 6 . h . 1. 6 . k . 14. 5 . The Compofition is as follows . N Let GHK be the given angle to which the angle ...
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added alfo alſo altitude angle ABC angle BAC bafe baſe becauſe bifected Book Book XI circle circle ABCD circumference common cone cylinder defcribed Definition demonftrated diameter divided double draw drawn equal equal angles equiangular equimultiples excefs fame fame multiple fecond fegment fhall fhewn fides fimilar firft firſt folid folid angle fore four fourth fquare fquare of BC ftraight line given angle given ftraight line given in fpecies given in pofition given magnitude given ratio greater Greek half join lefs magnitude manner meet oppofite parallel parallelogram perpendicular plane produced PROP Propofition proportionals pyramid reafon rectangle remaining right angles ſphere taken THEOR theſe third thro triangle ABC wherefore whole