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" Theorem — Two triangles are equal when the three sides of the one are respectively equal to the three sides of the other. "
A Treatise on Special Or Elementary Geometry - Page 145
by Edward Olney - 1872 - 239 pages
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A Course of Mathematics ...: Composed for the Use of the Royal Military ...

Charles Hutton - Mathematics - 1811 - 404 pages
...the elements of Geometry, vol. 1) that two spherical triangles are equal tor each other, 1 st. When the three sides of the one are respectively equal to the three sides of the other. 2dly. When each of them has an equal angle contained between equal sides: and, 3dly. When they have...
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A Course of Mathematics: For the Use of Academies as Well as ..., Volume 2

Charles Hutton - Mathematics - 1812 - 624 pages
...in the elements of Geometry, vol. 1) that two spherical triangles are equal to each other, 1st. When the three sides of the one are respectively equal to the three sides of the other. 2Uly. When each of them has an equal angle contained between equal sides : and, 3dly. When lliey have...
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Elements of Geometry and Trigonometry: With Notes

Adrien Marie Legendre - Geometry - 1822 - 394 pages
...hypothesis; therefore, BAC is greater than EDF. PROPOSITION XI. THEOREM. Two triangles are equal, when the three sides of the one are respectively equal to the three sides of the other. LET the side AB (see the diagram of Prop. 6.) be equal to DE, AC=DF, BC=EF; then is the angle A=D,...
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A Course of Mathematics for the Use of Academies, as Well as Private Tuition

Charles Hutton - Mathematics - 1822 - 680 pages
...of Geometry, vol. 1) that two spherical triangles are equal to each other, 1st. When the threesides of the one are respectively equal to the three sides of the other. 2dly. When each of them has an equal angle contained between equal sides : and, 3dly. When they have...
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The Youth's instructer [sic] and guardian, Volume 14

1854 - 1110 pages
...two triangles have the three angles in one respectively equal to the three in the other: (consequent) the three sides of the one are respectively equal to the three of the other ; which is incorrect. Proposition 6. — Problem. To bisect a given rectilineal angle...
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Elements of Geometry and Trigonometry: With Notes

Adrien Marie Legendre - Geometry - 1828 - 346 pages
...contradict the hypothesis ; therefore, BAC is greater than EDF. THEOREM. 43. Two triangles are equal, when the three sides of the one are respectively equal to the three sides of the other3TB Let the side AB=DE, = DF, BC = EF; then is the angle A=D, B=E, C=F. For, rt the angle A were...
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A system of practical mathematics; being no.xvi. of a new series of school-books

Scottish school-book assoc - 1845 - 444 pages
...ED; .-. EF : EG=EF : ED ; hence EG=ED. (Lem., p. 116.) "Wherefore in the two triangles EDF and EOF, the three sides of the one are respectively equal to the three sides of the other ; .•. the angles are = that are opposite to the equal sides, (Prop. 9); that is, the /DEF = the Z.GEF,...
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Principles of geometry, mensuration, trigonometry, land-surveying, and ...

Thomas Tate (mathematical master.) - 1848 - 284 pages
...will be perpendicular to BC. 19. THEOREM. The triangles DEF and ABC are equal in all respects, when cr the three sides of the one are respectively equal to the three sides of the other, that is, = AB, = AC, PRINCIPLES OP GEOMETRY. Let DEP be placed below ABC, so that DE shall coincide...
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Treatise on Plane and Solid Geometry: For Colleges, Schools and Private ...

Eli Todd Tappan - Geometry, Modern - 1864 - 288 pages
...enough, to determine the triangle. THREE SIDES EQUAL. 282. Theorem — Two triangles are equal when the three sides of the one are respectively equal to the three sides of the other. Let the side BD be equal to AI, the side BC equal to AE, and CD to El ; then the two triangles are...
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An Elementary Course of Plane Geometry

Richard Wormell - Geometry, Modern - 1868 - 286 pages
...included side of the one are respectively equal to the corresponding parts of the other. 3rd. When the three sides of the one are respectively equal to the three sides of the other. 12. Prove that when two sides of a triangle are respectively equal to two sides of another, but the...
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