## 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 TrigonometryW. E. Dean, 1851 - 317 sider |

### Inni boken

Resultat 1-5 av 14

Side 10

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**polygons**, by more than four straight lines . 19. Of three sided figures , an**equilateral**triangle is that which has three equal sides . 20. An isosceles triangle is that which has only two sides equal . ΔΔΔ 21. A scalene triangle is ... Side 31

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**equilateral**triangle ( Cor . 5. 1. ) is also equian- gular , each of its angles will be equal to the third part of ...**polygons**, which have re - entrant angles , as ABC each re - entrant angle must be regarded as greater than two right ... Side 32

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**polygon**is such that a straight line , drawn at pleasure , cannot meet the contour of the**polygon**in more than two ...**equilateral**( hyp . ) , they are also mutually equiangular ( Th . 8. ) , or have their corresponding angles equal ... Side 92

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**polygon**, which is at once**equilateral**and equiangular , is called a regular**polygon**. Regular**polygons**may have any number of sides ; the**equilateral**tri angle is one of three sides ; and the square is one of four sides . LEMMA . Any ... Side 105

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**equilateral**and equiangular quindecagon will be inscribed in it . And in the same manner as was done in the pentagon ...**polygon**being inscribed , if the arcs subtended by its sides be severally bisected , the chords of those semi - arcs ...### Andre utgaver - Vis alle

Elements of Geometry: Containing the First Six Books of Euclid, with a ... Euclid,John Playfair Uten tilgangsbegrensning - 1853 |

Elements of Geometry: Containing the First Six Books of Euclid, with a ... John Playfair Uten tilgangsbegrensning - 1857 |

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

### Vanlige uttrykk og setninger

ABC is equal ABCD adjacent angles altitude angle ABC angle ACB angle BAC base BC bisected centre chord circle ABC circumference cosine cylinder demonstrated described diameter divided draw equal and similar equal angles equiangular equilateral equilateral polygon equimultiples Euclid exterior angle fore four right angles given rectilineal given straight line greater Hence hypotenuse inscribed join less Let ABC Let the straight magnitudes meet multiple opposite angle parallel parallelogram parallelopiped perpendicular polygon prism PROB PROP proportional proposition quadrilateral radius ratio rectangle contained rectilineal figure remaining angle right angled triangle SCHOLIUM segment semicircle shewn side BC sine solid angle solid parallelopiped spherical angle spherical triangle square straight line BC THEOR touches the circle triangle ABC triangle DEF wherefore