The Elements of Euclid; viz. the first six books,together with the eleventh and twelfth, with an appendixThomas Tegg, 1841 - 351 páginas |
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Página 9
... equal to BF ; and because D is the centre of the circle FGK , DL is equal to DF , and DA , DB , parts of them , are equal ; therefore the remainder AL is equal to the remainder BF : but it has been * 15 Def . G H D C B * 3 Ax . shown ...
... equal to BF ; and because D is the centre of the circle FGK , DL is equal to DF , and DA , DB , parts of them , are equal ; therefore the remainder AL is equal to the remainder BF : but it has been * 15 Def . G H D C B * 3 Ax . shown ...
Página 10
... equal to two sides of the other , each to each ; and have likewise the angles contained by those sides equal to one another ; they shall likewise have their bases , or third sides , equal ; and the two triangles shall be equal ; and ...
... equal to two sides of the other , each to each ; and have likewise the angles contained by those sides equal to one another ; they shall likewise have their bases , or third sides , equal ; and the two triangles shall be equal ; and ...
Página 11
... equal to two sides of the other , each to each , and have , likewise , the angles contained by those sides equal to one another , their bases shall likewise be equal , and the triangles shall be equal , and their other angles , to which ...
... equal to two sides of the other , each to each , and have , likewise , the angles contained by those sides equal to one another , their bases shall likewise be equal , and the triangles shall be equal , and their other angles , to which ...
Página 12
... equal ; the * 3 Ax . remainder BF is equal to the remainder CG ; and * 4. 1 . 3. 1 . FC was proved to be equal to GB ; therefore the two sides BF , FC are equal to the two CG , GB , each to each ; and the angle BFC has been proved to be ...
... equal ; the * 3 Ax . remainder BF is equal to the remainder CG ; and * 4. 1 . 3. 1 . FC was proved to be equal to GB ; therefore the two sides BF , FC are equal to the two CG , GB , each to each ; and the angle BFC has been proved to be ...
Página 13
... equal to the angle ACB ; therefore the base DC is equal to the base AB , and the triangle DBC is equal to the triangle ACB , the less to the greater , which is absurd . Therefore AB is not unequal to AC , that is , it is equal to it ...
... equal to the angle ACB ; therefore the base DC is equal to the base AB , and the triangle DBC is equal to the triangle ACB , the less to the greater , which is absurd . Therefore AB is not unequal to AC , that is , it is equal to it ...
Otras ediciones - Ver todas
The Elements of Euclid: Viz. the First Six Books, Together with the Eleventh ... Euclid Sin vista previa disponible - 2015 |
The Elements of Euclid: Viz. the First Six Books, Together With the Eleventh ... Euclid Sin vista previa disponible - 2023 |
Términos y frases comunes
AB is equal AC is equal altitude angle ABC angle ACB angle BAC base BC bisect centre circle ABCD circle EFGH circumference common section cone cylinder demonstrated described diameter draw equal to F equiangular equilateral equimultiples exterior angle fore given rectilineal given straight line gnomon inscribed join less Let ABC meet multiple opposite angle parallel parallelogram parallelopiped perpendicular polygon prisms PROB proved pyramid ABCG pyramid DEFH Q. E. D. PROP rectangle contained rectilineal figure remaining angle right angles segment solid angle solid CD sphere square of AC straight line AC THEOR third three plane angles three straight lines tiples touches the circle triangle ABC triangle DEF triplicate ratio twice the rectangle wherefore whole
Pasajes populares
Página 173 - 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.
Página 56 - Iff a straight line be divided into any two parts, four times the rectangle contained by the whole line, and one of the parts, together with the square of the other part, is equal to the square of the straight line which is made up of the whole and that part.
Página 53 - If a straight line be divided into two equal parts, and also into two unequal parts, the rectangle contained by the unequal parts, together with the square on the line between the points of section, is equal to the square on half the line.
Página 58 - IF a straight line be divided into two equal, and also into two unequal parts; the squares of the two unequal parts are together double of the square of half the line, and of the square of the line between the points of section.
Página 94 - The angle in a semicircle is a right angle ; the angle in a segment greater than a semicircle is less than a right angle ; and the angle in a segment less than a semicircle is greater than a right angle.
Página 23 - Any two sides of a triangle are together greater than the third side.
Página 40 - EQUAL triangles upon the same base, and upon the same side of it, are between the same parallels.
Página 103 - If from any point without a circle two straight lines be drawn, one of which cuts the circle, and the other touches it; the rectangle contained by the whole line which cuts the circle, and the part of it without the circle, shall be equal to the square on the line which touches it.
Página 50 - PROP. I. THEOR. If there oe two straight lines, one of which is divided into any number of parts; the rectangle contained by the two straight lines, is equal to the rectangles contained by the undivided line, and the several parts of the divided line.
Página 28 - If two triangles have two angles of the one equal to two angles of the other, each to each, and also one side of the one equal to the corresponding side of the other, the triangles are congruent.