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If a side of any triangle be produced, the exterior angle is equal to the two interior and opposite angles; and the three interior angles of every triangle are together equal to two right angles.
The geometry of the three first books of Euclid, by direct proof from ... - Seite 24
von Euclides - 1856
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## Liber Cantabrigiensis, an account of the aids afforded to poor students, the ...

Robert Potts - 1855
...given point there can be drawn to a straight Hoe only two straight lines equal to one another. 10. If one side of a triangle be produced, the exterior angle is greater than either of the interior opposite angles. 12. If a straight line be divided into two equal...
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## The Elements of geometry; or, The first six books, with the eleventh and ...

Euclides - 1855
...angles be bisected, the bisecting lines are ¡none and the same straight line. PROP. XVI. THEOREM. If one side of a triangle be produced, the exterior angle is greater than either of the interior opposite angles. Let AB С be a triangle, and let its side B С...
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## Manual of Method for the use of teachers in elementary schools

W. F. RICHARDS - 1856 - 184 Seiten
...sides, show that these two triangles are not necessarily equal to one another. 4. If a side of any triangle be produced, the exterior angle is equal...the two interior and opposite angles ; and the three interior angles of every triangle are together equal to two right angles. 5. If a straight line be...
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## Cambridge examination papers: a suppl. to the University calendar, 1856-59

...angles. 2. Any two sides of a triangle are together greater than the third side. 4. If a side of any triangle be produced, the exterior angle is equal...the two interior and opposite angles; and the three interior angles of every triangle are equal to two right angles. If two sides of any triangle be produced,...
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## Elements of Geometry: Containing the First Six Books of Euclid with a ...

John Playfair - 1856 - 318 Seiten
...given point A parallel to the given straight line BC. PROP. XXXII. THEOR. If a side of any triangle oe produced, the exterior angle is equal to the two interior and opposite angles ; andlthe three interior angles of every triangle are equal to two right i Let ABC be a triangle, and...
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## Cambridge examination papers: a suppl. to the University calendar, 1856-59

...of the base equal to one another, and likewise those which are terminated in the other extremity. 3. If one side of a triangle be produced, the exterior angle is greater than either of the interior opposite angles. 4. If from the ends of the side of a triangle,...
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## Considerations on the Suggestions of the University Commissioners with ...

Henry Latham - 1857 - 59 Seiten
...of which the base, the sum of the other sides, and the vertical angle are given. 2. If a side of any triangle be produced, the exterior angle is equal...the two interior and opposite angles, and the three interior angles of every triangle are together equal to two right angles. At what angles are the sides...
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## The Pupil-teacher: A Monthly Journal of Practical Educational Literature, Band 3

1857 - 380 Seiten
...triangles upon the same base and upon the same side of it, are between the same parallels. Quest. 3. If one side of a triangle be produced, the exterior angle is greater than either of the interior opposite angles. Quest. 4. The greater angle of every triangle...
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## Parliamentary Papers, Band 25

Great Britain. Parliament. House of Commons - 1858 - 690 Seiten
...other two sides of the triangle, but shall contain a greater angle. 3. PKOP. XXXII.— If a side of any triangle be produced, the exterior angle is equal...the two interior and opposite angles ; and the three interior angles of every triangle are together equal to two right angles. 4. Enunciate and prove the...
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## Report of Her Majesty's Civil Service Commissioners: Together with ..., Band 3

1858
...two sides of the triangle, but shall contain a greater angle. 3. PJSOP. XXXII.— If a side of any triangle be produced, the exterior angle is equal...the two interior and opposite angles ; and the three interior angles of every triangle are together equal to two right angles. 4. Enunciate and prove the...
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