The First Six Books: Together with the Eleventh and TwelfthJ. Balfour, 1781 - 520 σελίδες |
Αναζήτηση στο βιβλίο
Αποτελέσματα 1 - 5 από τα 100.
Σελίδα 15
... equal to AB ; and because the point B is the centre of the c . 15th De circle ACE , BC is equal to BA : But it has been proved that CA is equal to AB ; therefore CA , CB are each of them equal to AB ; but things which are equal to the fame ...
... equal to AB ; and because the point B is the centre of the c . 15th De circle ACE , BC is equal to BA : But it has been proved that CA is equal to AB ; therefore CA , CB are each of them equal to AB ; but things which are equal to the fame ...
Σελίδα 16
... BC is equal to BG ; and because D is the centre of the circle GKL , e . 15. Def . DL is equal to DG , and DA , DB , parts of them , are equal ; § . 3. Ax . therefore the remainder AL is equal to the remainder f BG : But it has been ...
... BC is equal to BG ; and because D is the centre of the circle GKL , e . 15. Def . DL is equal to DG , and DA , DB , parts of them , are equal ; § . 3. Ax . therefore the remainder AL is equal to the remainder f BG : But it has been ...
Σελίδα 17
... equal A to the angle EDF , the base BC fhall be equal to the bafe EF ; and the triangle ABC to the triangle DEF ; and the other angles , to which the equal sides are oppofite , fhall be equal each to each , viz . the angle ABCB to ...
... equal A to the angle EDF , the base BC fhall be equal to the bafe EF ; and the triangle ABC to the triangle DEF ; and the other angles , to which the equal sides are oppofite , fhall be equal each to each , viz . the angle ABCB to ...
Σελίδα 20
... equal to AD in the triangle ACD , the angles ECD , FDC upon the other fide of the base CD are equal to one another , but the angle ECD is greater than the angle ... BC BC is equal to EF ; therefore BC coinciding with 20 THE ELEMENTS.
... equal to AD in the triangle ACD , the angles ECD , FDC upon the other fide of the base CD are equal to one another , but the angle ECD is greater than the angle ... BC BC is equal to EF ; therefore BC coinciding with 20 THE ELEMENTS.
Σελίδα 21
Together with the Eleventh and Twelfth Euclid. BC is equal to EF ; therefore BC coinciding with EF , BA and Book 1 . AC fhall coincide with ED and DF ; for , if the bafe BC cain- cides with the base EF , but the fides BA , CA do not coin ...
Together with the Eleventh and Twelfth Euclid. BC is equal to EF ; therefore BC coinciding with EF , BA and Book 1 . AC fhall coincide with ED and DF ; for , if the bafe BC cain- cides with the base EF , but the fides BA , CA do not coin ...
Άλλες εκδόσεις - Προβολή όλων
The First Six Books: Together with the Eleventh and Twelfth Euclid Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2016 |
Συχνά εμφανιζόμενοι όροι και φράσεις
alfo alſo angle ABC angle BAC bafe baſe BC is equal BC is given becauſe the angle becauſe the ratio bifected Book XI cafe centre circle ABCD circumference cone confequently cylinder defcribed demonftrated drawn EFGH equal angles equiangular equimultiples Euclid excefs faid fame manner fame multiple fame ratio fame reafon fecond fegment fide BC fides fimilar firft firſt folid angle fome fore fphere fquare of AC ftraight line AB ftraight line BC given angle given ftraight line given in fpecies given in magnitude given in pofition given magnitude given ratio gnomon greater join lefs likewife oppofite parallel parallelepipeds parallelogram perpendicular plane angles prifms PROP propofition pyramid ratio of BC rectangle contained rectilineal figure right angles ſquare thefe THEOR theſe triangle ABC wherefore
Δημοφιλή αποσπάσματα
Σελίδα 472 - The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; and each degree into 60 equal parts, called minutes ; and each minute into 60 equal parts, called seconds ; and these into thirds, &c.
Σελίδα 170 - 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.
Σελίδα 81 - THE straight line drawn at right angles to the diameter of a circle, from the extremity of...
Σελίδα 105 - DEF are likewise equal (13. i.) to two right angles ; therefore the angles AKB, AMB are equal to the angles DEG, DEF, of which AKB is equal to DEG ; wherefore the remaining angle AMB is equal to the remaining angle DEF.
Σελίδα 167 - AC the same multiple of AD, that AB is of the part which is to be cut off from it : join BC, and draw DE parallel to it : then AE is the part required to be cut off.
Σελίδα 10 - When a straight line standing on another straight line makes the adjacent angles equal to one another, each of the angles is called a right angle; and the straight line which stands on the other is called a perpendicular to it.
Σελίδα 62 - AB be the given straight line ; it is required to divide it into two parts, so that the rectangle contained by the whole, and one of the parts, shall be equal to the square of the other part.
Σελίδα 112 - To describe an equilateral and equiangular pentagon about a given circle. • Let ABCDE be the given circle; it is required to describe an equilateral and equiangular pentagon about the circle ABCDE. Let the angles of a pentagon, inscribed in the circle...
Σελίδα 200 - If two triangles have two angles of the one equal to two angles of the other, each to each, and one side equal to one side, viz. either the sides adjacent to the equal...
Σελίδα 38 - F, which is the common vertex of the triangles ; that is, together with four right angles. Therefore all the angles of the figure, together with four right angles, are equal to twice as many right angles as the figure has sides.