The definitions, postulates, axioms, and enunciations of the propositions of the first six, and the eleventh and twelfth books of Euclid's Elements of geometry1848 - 42 páginas |
Dentro del libro
Resultados 1-5 de 8
Página 5
Euclides. XXX . Of quadrilateral or four - sided figures , a square has all its sides equal and all its angles right angles . XXXI . An oblong is that which has all its angles right angles , but has not all its sides equal . XXXII . A ...
Euclides. XXX . Of quadrilateral or four - sided figures , a square has all its sides equal and all its angles right angles . XXXI . An oblong is that which has all its angles right angles , but has not all its sides equal . XXXII . A ...
Página 10
... square upon a given straight line . COR . Hence , every parallelogram that has one right angle , has all its angles right angles . PROP . XLVII . THEOREM . In any right - angled triangle , the square which is described upon the side ...
... square upon a given straight line . COR . Hence , every parallelogram that has one right angle , has all its angles right angles . PROP . XLVII . THEOREM . In any right - angled triangle , the square which is described upon the side ...
Página 11
... square of the whole line is equal to the squares of the two parts , together with twice the rectangle contained by the parts . COR . From the demonstration , it is manifest , that the parallelograms about the diameter of a square are ...
... square of the whole line is equal to the squares of the two parts , together with twice the rectangle contained by the parts . COR . From the demonstration , it is manifest , that the parallelograms about the diameter of a square are ...
Página 12
... square of half the line bisected , is equal to the square of the straight line which is made up of the half and the part produced . PROP . VII . THEOREM . If a straight line be divided into any two parts , the squares of the whole line ...
... square of half the line bisected , is equal to the square of the straight line which is made up of the half and the part produced . PROP . VII . THEOREM . If a straight line be divided into any two parts , the squares of the whole line ...
Página 17
... square of the line which touches it . COR . If from any point without a circle , there be drawn two straight lines cutting it , the rectangles contained by the whole lines and the parts of them without the circle , are equal to one ...
... square of the line which touches it . COR . If from any point without a circle , there be drawn two straight lines cutting it , the rectangles contained by the whole lines and the parts of them without the circle , are equal to one ...
Otras ediciones - Ver todas
The Definitions, Postulates, Axioms and Enunciations of the Propositions of ... Vista completa - 1848 |
The Definitions, Postulates, Axioms, and Enunciations of the Propositions of ... Euclid Sin vista previa disponible - 2018 |
The Definitions, Postulates, Axioms, and Enunciations of the Propositions of ... Euclid Sin vista previa disponible - 2023 |
Términos y frases comunes
acute angle adjacent angles angle contained angles equal bases and altitudes bisect centre common section compounded of ratios cones and cylinders contained by three cuts the circle diameter equal circles equal straight lines equilateral and equiangular equilateral triangle equimultiples EUCLID'S ELEMENTS Ex æquali exterior angle four magnitudes four straight lines fourth given circle given rectilineal angle given rectilineal figure given straight line given triangle greater ratio homologous sides inscribed line be divided line be drawn lines be proportionals magnitude taken manifest multiple number of magnitudes obtuse angle parallel perpendicular polygons prisms PROBLEM PROP ratio compounded reciprocally proportional rectangle contained remaining ratio segment semicircle sides equal similar triangles similarly described solid angles solid figure contained solid parallelopiped solid polyhedron straight line drawn straight lines cut THEOREM third three plane angles three straight lines tiple triangular bases triangular pyramids Trinity College triplicate ratio unequal whole line XVIII XXIII
Pasajes populares
Página 8 - IF two triangles have two sides of the one equal to two sides of the...
Página 29 - 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 6 - If a straight line meet two straight lines, so as to make the two interior angles on the same side of it taken together less than two right angles...
Página 14 - From this it is manifest, that if in a circle a straight line bisect another at right angles, the centre of the circle is in the line which bisects the other.
Página 23 - The first of four magnitudes is said to have the same ratio to the second, which the third has to the fourth, when any equimultiples whatsoever of the first and third being taken, and any equimultiples whatsoever of the second and fourth ; if the multiple of the first be less than that of the second, the multiple of the third is also less than that of the fourth...
Página 11 - If there be 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 13 - angle in a segment' is the angle contained by two straight lines drawn from any point in the circumference of the segment, to the extremities of the straight line which is the base of the segment.
Página 12 - To divide a given straight line into two parts, so that the rectangle contained by the whole and one of the parts, shall be equal to the square on the other part.
Página 4 - A diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference.
Página 30 - ABC, DEF have one angle in the one equal to one angle in the other, viz. the angle BAC to the angle EDF, and the sides about...