Elements of Geometry, and Plane Trigonometry: With an Appendix, and Very Copious Notes and IllustrationsW. & C. Tait, and Longman, Hurst, Rees, Orme, & Brown, London, 1820 - 465 páginas |
Dentro del libro
Resultados 1-5 de 85
Página 13
... side AB equal to DF , AC to DE , and BC to FE : These triangles are equal . For conceive the triangle ACB to be applied to DEF : The point A being laid on D , and the side AC on DE , their other extremities C and E must coincide , since ...
... side AB equal to DF , AC to DE , and BC to FE : These triangles are equal . For conceive the triangle ACB to be applied to DEF : The point A being laid on D , and the side AC on DE , their other extremities C and E must coincide , since ...
Página 14
... side AB is equal to DE , the side BC to EF , and the angle ABC contained by the former equal to DEF which is ... AC and DF will also coincide . Wherefore , the one triangle being thus per- fectly adapted to the other , a general equality must ...
... side AB is equal to DE , the side BC to EF , and the angle ABC contained by the former equal to DEF which is ... AC and DF will also coincide . Wherefore , the one triangle being thus per- fectly adapted to the other , a general equality must ...
Página 16
... sides AB and BC of the given angle be supposed equal , only one circle would be ... side even make repeated revolutions . PROP . V. PROB . To bisect a given ... AC ; for the angle ABC , which the opposite seg- ments BA and BC make with ...
... sides AB and BC of the given angle be supposed equal , only one circle would be ... side even make repeated revolutions . PROP . V. PROB . To bisect a given ... AC ; for the angle ABC , which the opposite seg- ments BA and BC make with ...
Página 17
... AC , Schol . In the general construction , the isosceles triangle DFE may lie either below or above the base DE ... side DC equal to DF , EC to EF , and -B DE common to them both ; whence ( I. 2. ) the angle CDE or CDG is equal to FDE or FDG ...
... AC , Schol . In the general construction , the isosceles triangle DFE may lie either below or above the base DE ... side DC equal to DF , EC to EF , and -B DE common to them both ; whence ( I. 2. ) the angle CDE or CDG is equal to FDE or FDG ...
Página 18
... sides AC and AD of the triangle CAD being respectively equal to BC and BD of the triangle CBD , and the side CD common to them both ; these triangles B E ( I. 2. ) are equal , and hence the angle ACD or ACE is equal to BCD or BCE ...
... sides AC and AD of the triangle CAD being respectively equal to BC and BD of the triangle CBD , and the side CD common to them both ; these triangles B E ( I. 2. ) are equal , and hence the angle ACD or ACE is equal to BCD or BCE ...
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Otras ediciones - Ver todas
Elements of Geometry and Plane Trigonometry. with an Appendix, and Copious ... University Professor Emeritus John Leslie, Sir Sin vista previa disponible - 2016 |
Elements of Geometry, and Plane Trigonometry: With an Appendix, and Copious ... John Leslie,University Professor Emeritus John Leslie, Sir Sin vista previa disponible - 2017 |
Términos y frases comunes
ABCD adjacent angle altitude angle ABC angle ACB angle BAC base AC bisect centre chord circle circumference consequently construction contained angle corresponding cosine decagon denote describe diameter difference distance diverging lines divided draw equal to BC evidently expressed exterior angle Geometry given greater half Hence hypotenuse inscribed isosceles triangle join let fall likewise mean proportional measure multiple parallel perpendicular point G polygon PROB PROP proposition quadrant quadrilateral figure quantities radius ratio rectangle rectangle contained rectilineal figure rhomboid right angles right-angled triangle Scholium segments semicircle semiperimeter sexagesimal side AC sine square of AB square of AC straight line tangent THEOR tion toises triangle ABC Trigonometry twice the rectangle twice the square vertex vertical angle whence Wherefore
Pasajes populares
Página 110 - To describe an isosceles triangle, having each of the angles at the base double of the third angle.
Página 30 - If a straight line fall upon two parallel straight lines, it makes the alternate angles equal to one another ; and the exterior angle equal to the interior and opposite upon the same side ; and likewise the two interior angles upon the same side together equal to two right angles.
Página 334 - the first of four magnitudes is said to have the same ratio to the second which the third has to the fourth, when any...
Página 293 - Thus, for" example, he to whom the geometrical proposition, that the angles of a triangle are together equal to two right angles...
Página 88 - ... a circle. The angle in a semicircle is a right angle; the angle in a segment greater than a semicircle is less than a right angle; and the angle in a segment less than a semicircle is greater than a right angle. The opposite angles of any quadrilateral inscribed in a circle are supplementary; and the converse.
Página 295 - 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...
Página 10 - A diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference.
Página 129 - The first and last terms of a proportion are called the extremes, and the two middle terms are called the means.
Página 93 - UPON a given straight line to describe a segment of a circle containing an angle equal to a given rectilineal angle.
Página 38 - All the interior angles of any rectilineal figure, together with four right angles, are equal to twice as many right angles as the figure has sides.