Geometry for schools, comprising books i. and ii. of Euclid, with some additions and numerous exercises, by A.J.G. BarclayOliver & Boyd, 1883 - 96 páginas |
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Página 11
... four - sided figure which has all its sides equal and all its angles right angles . It is sufficient , if all the ... four - sided figure which has not all its sides equal , but its angles are right angles . 26. A rhombus is a four ...
... four - sided figure which has all its sides equal and all its angles right angles . It is sufficient , if all the ... four - sided figure which has not all its sides equal , but its angles are right angles . 26. A rhombus is a four ...
Página 19
... four equal parts . 19. To divide a given finite straight line into four , eight , etc. , equal parts . PROP . 11. PROB . To draw a straight line GEOMETRY . 19.
... four equal parts . 19. To divide a given finite straight line into four , eight , etc. , equal parts . PROP . 11. PROB . To draw a straight line GEOMETRY . 19.
Página 22
... four angles at the point of intersection are together equal to four right angles . 28. If any number of lines meet at a point , the angles made by these lines taken consecutively , amount to four right angles . PROP . 14. THEOR . If ...
... four angles at the point of intersection are together equal to four right angles . 28. If any number of lines meet at a point , the angles made by these lines taken consecutively , amount to four right angles . PROP . 14. THEOR . If ...
Página 23
... four straight lines meet at a point and make the opposite angles equal to one another , the lines are two and two in the same straight line . 30. If two supplementary angles are bisected , the bisecting lines are at right angles to one ...
... four straight lines meet at a point and make the opposite angles equal to one another , the lines are two and two in the same straight line . 30. If two supplementary angles are bisected , the bisecting lines are at right angles to one ...
Página 28
... four sides of any quadrilateral are together greater than the two diagonals together , and less than the double of the two diagonals . 50. Two sides of a triangle are together greater than twice the line joining the vertex to the middle ...
... four sides of any quadrilateral are together greater than the two diagonals together , and less than the double of the two diagonals . 50. Two sides of a triangle are together greater than twice the line joining the vertex to the middle ...
Otras ediciones - Ver todas
Geometry For Schools, Comprising Books I. And Ii. Of Euclid, With Some ... Euclides Sin vista previa disponible - 2019 |
Geometry For Schools, Comprising Books I. And Ii. Of Euclid, With Some ... Euclides Sin vista previa disponible - 2019 |
Términos y frases comunes
AC² angle contained angles equal angular points Atlas base BC BC² bisect Boyd's School Carefully Revised centre Coloured Maps cons construct a triangle diagonals Dr Douglas's Dr Reid's Edinburgh Academy Euclid Exercises exterior angle figure has sides find a point four right angles full-coloured Maps George Watson's College given line given point given straight line given triangle hypotenuse interior isosceles triangle late Head Master Lawson's LL.D middle points Modern Geography Oliver and Boyd's opposite angles opposite sides Outline of Sacred parallelogram perpendicular Physical Geography point in CD polygon produced PROP proposition prove quadrilateral Questions for Examination rect rectangle contained reflex angle regular polygon Reid's Elements rhombus right-angled triangle Rudiments of Modern Sacred Geography showing Recent sides equal square St Mark's College Text-Book THEOR trapezium triangles ABC vertex WILLIAM LAWSON
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Página 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.
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Página 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...
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Página 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.
Página 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.