## Elements of Geometry: Containing the First Six Books of Euclid, with a Supplement on the Quadrature of the Circle and the Geometry of Solids ; to which are Added Elements of Plane and Spherical Trigonometry |

### Inni boken

Resultat 1-5 av 33

Side xii

It contains the rudiments of what is properly

It contains the rudiments of what is properly

**called**the Geometrical Analysis , and has itself an analytical form ; and for these reasons , I would willingly reserve it , or rather a compend of it , for a separate work , intended as an ... Side 17

If two lines are such that they cannot coincide in any two points , “ without coinciding altogether , each of them is

If two lines are such that they cannot coincide in any two points , “ without coinciding altogether , each of them is

**called**a straight - line . ” " Cor . Hence two straight lines cannot inclose a space . Neither can “ two straight ... Side 18

... or DBA ; and that which is contained by BD , CB is

... or DBA ; and that which is contained by BD , CB is

**called**the angle DBC , or CBD ; but , if there be only one angle at ' a point , it may be expressed by a letter placed at that point ; as the • angle at E. " VII . Side 19

A circle is a plane figure contained by one line , which is

A circle is a plane figure contained by one line , which is

**called**the circumference , and is such that all straight lines drawn from a certain point within the figure to the circumference , are equal to one another . XII . Side 20

All other four sided figures besides these , are

All other four sided figures besides these , are

**called**Trapeziums . XXX . Parallel straight lines , are such as are in the same plane , and which being produced ever so far both ways , do not meet . 2 POSTULATES .### Hva folk mener - Skriv en omtale

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Elements of Geometry: Containing the First Six Books of Euclid, with a ... John Playfair Uten tilgangsbegrensning - 1836 |

Elements of Geometry: Containing the First Six Books of Euclid: With a ... John Playfair Uten tilgangsbegrensning - 1819 |

Elements of Geometry: Containing the First Six Books of Euclid with a ... John Playfair Uten tilgangsbegrensning - 1855 |

### Vanlige uttrykk og setninger

ABC is equal ABCD altitude angle ABC angle BAC arch base bisected Book called centre circle circle ABC circumference coincide common cylinder definition demonstrated described diameter difference divided double draw drawn equal equal angles equiangular Euclid exterior angle extremity fall fore four fourth given given straight line greater half inscribed interior join less Let ABC magnitudes manner meet multiple opposite parallel parallelogram pass perpendicular plane polygon prism produced PROP proportionals proposition proved radius ratio reason rectangle contained rectilineal figure right angles segment shewn sides similar sine solid square straight line taken tangent THEOR thing third touches triangle ABC wherefore whole