Geometry Without Axioms; Or the First Book of Euclid's Elements. With Alterations and Familiar Notes; and an Intercalary Book in which the Straight Line and Plane are Derived from Properties of the Sphere ...: To which is Added an Appendix ...Robert Heward, 1833 - 150 sider |
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Side ix
... tessera [ or quadrilateral recti- linear plane figure of which two of the opposite sides are equal to one another and make equal interior angles with a side between them which shall be called the base ] has the angles at the base less ...
... tessera [ or quadrilateral recti- linear plane figure of which two of the opposite sides are equal to one another and make equal interior angles with a side between them which shall be called the base ] has the angles at the base less ...
Side 87
... tessera . PROPOSITION XXVIII B. THEOREM . - If two equal straight lines make an angle less than the sum of two right angles , and at the outward extremity of each be added another straight line equal to the first , having its extremity ...
... tessera . PROPOSITION XXVIII B. THEOREM . - If two equal straight lines make an angle less than the sum of two right angles , and at the outward extremity of each be added another straight line equal to the first , having its extremity ...
Side 88
... tessera , and the angles BDE , CED equal ‡ to one another . And in the same way may be shown that FDEG , HFGI , & c . are likewise tesseras . Again , because at the ends of the base AC are drawn * two equal straight lines AB , CE ...
... tessera , and the angles BDE , CED equal ‡ to one another . And in the same way may be shown that FDEG , HFGI , & c . are likewise tesseras . Again , because at the ends of the base AC are drawn * two equal straight lines AB , CE ...
Side 89
... tessera DBCE at right angles , it † bisects the opposite side DE Cor . 1 . at right angles . And so on . COR . 4. If a straight line WX of unlimited length both ways , be made to pass through the vertex A at right angles to AZ , and ...
... tessera DBCE at right angles , it † bisects the opposite side DE Cor . 1 . at right angles . And so on . COR . 4. If a straight line WX of unlimited length both ways , be made to pass through the vertex A at right angles to AZ , and ...
Side 93
... tessera be less than right angles , the angles opposite to the base cannot be right angles . Let ABNM be a tessera , in which the angles BAM , ABN at the base AB are less than right angles . AMN , BNM which are opposite to the base ...
... tessera be less than right angles , the angles opposite to the base cannot be right angles . Let ABNM be a tessera , in which the angles BAM , ABN at the base AB are less than right angles . AMN , BNM which are opposite to the base ...
Andre utgaver - Vis alle
Geometry Without Axioms; Or the First Book of Euclid's Elements. With ... Thomas Perronet Thompson Uten tilgangsbegrensning - 1833 |
Geometry Without Axioms; Or the First Book of Euclid's Elements. with ... Thomas Perronet Thompson Ingen forhåndsvisning tilgjengelig - 2015 |
Vanlige uttrykk og setninger
ABCD adjacent angles alternate angles angle ABC angle ACB angle BAC angular points assigned point Axiom axis base BC bisected called CEGDHF central distances change of place circle coincide throughout Constr demonstrated double equal angles equal straight lines equal to AC equal to EF equilateral triangle Euclid exterior angle extremities four right angles Geometry given straight line greater half the angle hard body inclose a space instance INTERC Intercalary Book ist equal join line AC magnitude manner meet opposite angles parallelogram parity of reasoning pass perpendicular prolonged Prop PROPOSITION proved quadrilateral radii radius rectilinear figure remain unmoved remaining angle remains at rest respectively SCHOLIUM self-rejoining line shown side BC side opposite situation sphere whose centre straight line BC tessera THEOREM.-If third side triangle ABC turned unlimited length Wherefore
Populære avsnitt
Side 51 - 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.
Side 109 - PARALLELOGRAMS upon the same base, and between the same parallels, are equal to one another...
Side 111 - Parallelograms upon the same base and between the same parallels, are equal to one another.
Side 120 - If the square described on one of the sides of a triangle be equal to the squares described on the other two sides of it, the angle contained by these two sides is a right angle.
Side 72 - Any two sides of a triangle are together greater than the third side.
Side 55 - From the greater of two given straight lines to cut off a part equal to the less. Let AB and C be the two given straight lines, whereof AB is the greater.
Side 70 - Any two angles of a triangle are together less than two right angles.
Side 138 - ... the exterior angle equal to the interior and opposite on the same side of the line ; and likewise the two interior angles on the same side of the line together equal to two right angles.
Side 106 - THE straight lines which join the extremities of two equal and parallel straight lines, towards the same parts, are also themselves equal and parallel.