The Elements of Euclid; viz. the first six books, together with the eleventh and twelfth. Also the book of Euclid's Data. By R. Simson. To which is added, A treatise on the construction of the trigonometrical canon [by J. Christison] and A concise account of logarithms [by A. Robertson]. |
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Page 3
And this point is called the centre of the circle . XVII . A diameter of a circle is a straight line drawn through See N. the centre , and terminated both ways by the circumference . See last fig . XIX . " A segment of a circle is the ...
And this point is called the centre of the circle . XVII . A diameter of a circle is a straight line drawn through See N. the centre , and terminated both ways by the circumference . See last fig . XIX . " A segment of a circle is the ...
Page 6
From the centre A , at the distance AB , describe the circle BCD ; and from the centre B , at the distance BA , describe the circle ACE ; and from the point C , in which the circles cut one another , draw the straight lines * CA ...
From the centre A , at the distance AB , describe the circle BCD ; and from the centre B , at the distance BA , describe the circle ACE ; and from the point C , in which the circles cut one another , draw the straight lines * CA ...
Page 7
tre D , at the distance DG , describe the circle GKL : AL shall be equal to BC . * Because the point B is the centre of the circle CGH , BC is equal to BG ; and because D is the centre of the circle GKL , DL is equal to DG ; and † DA ...
tre D , at the distance DG , describe the circle GKL : AL shall be equal to BC . * Because the point B is the centre of the circle CGH , BC is equal to BG ; and because D is the centre of the circle GKL , DL is equal to DG ; and † DA ...
Page 19
... scribe the circle DKL ; and from the * 3 Post . centre G , at the distance GH , describe * another circle HLK ; ' * 3 Post . and join KF , KG : the triangle KFG shall have its sides equal to the three straight lines A , B , C. * 20.
... scribe the circle DKL ; and from the * 3 Post . centre G , at the distance GH , describe * another circle HLK ; ' * 3 Post . and join KF , KG : the triangle KFG shall have its sides equal to the three straight lines A , B , C. * 20.
Page 20
See N. * * Because the point F is the centre of the circle DKL , FD is equal to FK ; but FD is equal † to the straight line A ; therefore FK is equal † to A : again , because G is the centre of the circle LKH , GH is equal to GK ...
See N. * * Because the point F is the centre of the circle DKL , FD is equal to FK ; but FD is equal † to the straight line A ; therefore FK is equal † to A : again , because G is the centre of the circle LKH , GH is equal to GK ...
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added altitude angle ABC angle BAC base Book centre circle circle ABCD circumference common cone contained cylinder definition demonstrated described diameter difference divided double draw drawn equal equal angles equiangular equimultiples Euclid excess figure fore four fourth given angle given in position given in species given magnitude given ratio given straight line greater Greek half join less likewise logarithm manner meet multiple opposite parallel parallelogram pass perpendicular plane prism produced Prop proportionals PROPOSITION proved pyramid radius reason rectangle rectangle contained remaining right angles segment shewn sides similar sine solid solid angle sphere square square of BC taken third triangle ABC wherefore whole
Popular passages
Page 32 - To a given straight line, to apply a parallelogram which shall be equal to a given triangle, and have one of its angles equal to a given rectilineal angle...
Page 138 - If two triangles have one angle of the one equal to one angle of the other and the sides about these equal angles proportional, the triangles are similar.
Page 39 - If a straight line be divided into any two parts, the rectangle contained by the whole and one of the parts, is equal to the rectangle contained by the two parts, together with the square of the aforesaid part.
Page 22 - If a straight line fall upon two parallel straight lines, it makes the alternate angles equal to one another...
Page 41 - If a straight line be bisected and produced to any point, the rectangle contained by the whole line thus produced and the part of it produced, together •with the square on half the line bisected, is equal to the square on the straight line which is made up of the half and the part produced.
Page 5 - If two triangles have two sides of the one equal to two sides of the other, each to each, but the...
Page 38 - IF a straight line be divided into any two parts, the rectangles contained by the whole and each of the parts, are together equal to the square of the whole line. Let the straight line AB be divided...
Page 262 - Again ; the mathematical postulate, that " things which are equal to the same are equal to one another," is similar to the form of the syllogism in logic, which unites things agreeing in the middle term.
Page 89 - PBOR. —To describe an isosceles triangle, having each of the angles at the base, double of the third angle. Take any straight...
Page 165 - Wherefore, in equal circles &c. QED PROPOSITION B. THEOREM If the vertical angle of a triangle be bisected by a straight line which likewise cuts the base, the rectangle contained by the sides of the triangle is equal to the rectangle contained by the segments of the base, together with the square on the straight line which bisects the angle.
Bibliographic information
| Title | The Elements of Euclid; viz. the first six books, together with the eleventh and twelfth. Also the book of Euclid's Data. By R. Simson. To which is added, A treatise on the construction of the trigonometrical canon [by J. Christison] and A concise account of logarithms [by A. Robertson]. |
| Author | Euclides |
| Editor | Robert Simson |
| Edition | 24 |
| Published | 1834 |
| Original from | Oxford University |
| Digitized | 18 Apr 2006 |
| Export Citation | BiBTeX EndNote RefMan |