## The Elements of Euclid: Viz. the First Six Books, Together with the Eleventh and Twelfth |

### From inside the book

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Page 3

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 ...

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 ...

**Rectilineal figures**are those which are contained by B 2 BOOK I. -DEFINITIONS . Page 4

**Rectilineal figures**are those which are contained by straight lines . XXI . Trilateral figures , or triangles , by three straight lines . XXII . Quadrilateral , by four straight lines . XXIII . Multilateral figures , or polygons ... Page 34

All the interior angles of any

All the interior angles of any

**rectilineal figure**, fi together with four right angles , are equal to twice as many right angles as the figure has sides . For any**rectilineal figure**ABCDE , can be divided into as many triangles as the ... Page 42

+ Const . given

+ Const . given

**rectilineal**angle . ... GF parallelograms about AC , that is , through which K E F AC passes : and BK , KD the other parallelograms which make up the whole**figure**ABCD , which are BG ** therefore called the complements . Page 44

To describe a parallevigram equal to a given

To describe a parallevigram equal to a given

**rectilineal figure**, and having an angle equal to a given rectilineal angle . Let ABCD be the given**rectilineal figure**, and E the given rectilineal angle . It is required to describe a ...### What people are saying - Write a review

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The Elements of Euclid: Viz. The First Six Books, Together With the Eleventh ... Euclid Euclid No preview available - 2018 |

### Common terms and phrases

altitude angle ABC angle BAC base base BC BC is equal centre circle ABCD circumference common cone Const contained cylinder demonstrated described diameter divided double draw drawn equal angles equiangular equilateral equimultiples extremities fall figure fore four fourth given given straight line greater half inscribed join less Let ABC likewise magnitudes manner meet multiple opposite parallel parallelogram pass perpendicular plane polygon prism PROB produced PROP proportionals proved pyramid ratio reason rectangle contained rectilineal figure remaining angle right angles segment shown sides similar solid solid angle solid parallelopiped sphere square taken THEOR third touches triangle ABC vertex wherefore whole