## Geometry for schools, comprising books i. and ii. of Euclid, with some additions and numerous exercises, by A.J.G. Barclay |

### Inni boken

Resultat 1-5 av 77

Side 4

Q.E.D. is for “ Quod erat demonstrandum , " and indicates that a theorem has

been

be allowed to the pupils , at the discretion of the teacher . – for equals in every ...

Q.E.D. is for “ Quod erat demonstrandum , " and indicates that a theorem has

been

**proved**. In the writing out of propositions the use of the following may alsobe allowed to the pupils , at the discretion of the teacher . – for equals in every ...

Side 6

Explanation of Terms . The Science of Geometry is developed in a series of

Propositions , which are divided into Theorems and Problems . A Theorem is the

statement of a truth to be demonstrated from truths previously admitted or

.

Explanation of Terms . The Science of Geometry is developed in a series of

Propositions , which are divided into Theorems and Problems . A Theorem is the

statement of a truth to be demonstrated from truths previously admitted or

**proved**.

Side 11

It is sufficient , if all the sides are equal , to have one angle a right angle , as it

may then be

oblong , is a four - sided figure which has not all its sides equal , but its angles

are ...

It is sufficient , if all the sides are equal , to have one angle a right angle , as it

may then be

**proved**that the other angles are right angles . 25. A rectangle , oroblong , is a four - sided figure which has not all its sides equal , but its angles

are ...

Side 15

... or third sides , shall be equal ; and the two triangles shall be equal ; and their

other angles shall be equal , each to each , viz . , those to which the equal sides

are opposite . B4 E. Given AB = DE , AC = DF , and 2 A = D. To

E ...

... or third sides , shall be equal ; and the two triangles shall be equal ; and their

other angles shall be equal , each to each , viz . , those to which the equal sides

are opposite . B4 E. Given AB = DE , AC = DF , and 2 A = D. To

**prove**BC EF , B -E ...

Side 16

The angles at the base of an isosceles triangle are equal . Given A ABC , having

AB = AC . To

AD is common to the triangles BAD and CAD , and 2 BAD = 2 CAD ( supposition )

...

The angles at the base of an isosceles triangle are equal . Given A ABC , having

AB = AC . To

**prove**B = L C. Suppose AD bisects BAC . :: BA = AC ( given ) , andAD is common to the triangles BAD and CAD , and 2 BAD = 2 CAD ( supposition )

...

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Geometry For Schools, Comprising Books I. And Ii. Of Euclid, With Some ... Euclides Ingen forhåndsvisning tilgjengelig - 2019 |

Geometry For Schools, Comprising Books I. And Ii. Of Euclid, With Some ... Euclides Ingen forhåndsvisning tilgjengelig - 2019 |

### Vanlige uttrykk og setninger

adjacent amount angles equal Atlas base bisect Book bound Carefully Revised centre circle Classes Coloured common cons construct contained describe diagonals difference distance divided draw Edinburgh Edition English equal Examination Exercises exterior angle fall figure four French Geography given line given point given straight line Grammar greater half History Illustrations interior intersecting isosceles triangle Junior late Lawson's less line joining lines drawn Maps Master meet middle points Modern Geography names Notes Oliver and Boyd's opposite sides Outlines parallel parallelogram perpendicular Physical Geography places position Post Price produced PROP proposition prove quadrilateral rect rectangle contained Reid's respect right angles right-angled triangle School Science showing square straight line Take THEOR third triangle twice vertex vertical whole

### Populære avsnitt

Side 15 - If two triangles have two sides of the one equal to two sides of the...

Side 73 - Household Economy. A MANUAL intended for Female Training Colleges, and the Senior Class of Girls' Schools. By MARGARET MARIA GORDON (Miss Brewster), Author of " Work, or Plenty to do and how to do it,

Side 84 - M'DowALL. 2s. Lectiones Selectae : or, Select Latin Lessons in Morality, History, and Biography : for the use of Beginners. With a Vocabulary explaining every Word in the Text. By C. MELVILLE, late of the Grammar School, Kirkcaldy. Is. 6d. Macgowan's Lessons in Latin Reading. In Two PARTS. Part I., Improved by H.

Side 12 - Notions 1. Things which are equal to the same thing are also equal to one another. 2. If equals be added to equals, the wholes are equal. 3. If equals be subtracted from equals, the remainders are equal. 4. Things which coincide with one another are equal to one another.

Side 75 - Watts' Catechism of Scripture History, and of the Condition of the Jews from the Close of the Old Testament to the Time of Christ. With INTRODUCTION by WK TWEEDIE, DD 2s.

Side 81 - Critical Remarks, in which the various Methods of Pronouncing employed by different Authors are investigated and compared with each other.

Side 13 - If a straight line meets two straight lines, so as to " make the two interior angles on the same side of it taken " together less than two right angles...

Side 73 - A DICTIONARY of the ENGLISH LANGUAGE, CONTAINING THE PRONUNCIATION, ETYMOLOGY, AND EXPLANATION OF ALL WORDS AUTHORIZED BY EMINENT WRITERS ; To which are added, a Vocabulary of the Roots of English Words, and an Accented Lat of Greek, Latin, and Scripture Proper Names.

Side 46 - THE angles at the base of an isosceles triangle are equal to one another : and, if the equal sides be produced, the angles upon the other side of the base shall be equal.

Side 74 - A carefully compiled history for the use of schools. The writer has consulted the more recent authorities: his opinions are liberal, and on the whole just and impartial : the succession of events is developed with clearness, and with more of that picturesque effect which so delights the young than is common in historical abstracts.