Libros Libros 11 - 20 de 108 sobre If, at a point in a straight line, two other straight lines upon the opposite sides...
If, at a point in a straight line, two other straight lines upon the opposite sides of it, make the adjacent angles, together equal to two right angles, these two straight lines shall be in one and the same straight line.
Elements of Geometry;: Containing the First Six Books of Euclid, with Two ... - Página 18
por John Playfair - 1795 - 400 páginas
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## A Popular Course of Pure and Mixed Mathematics ...: With Tables of ...

Peter Nicholson - 1825 - 372 páginas
...XIV. Theorem. If, at a point in a straight line, two other straight lines, upon the opposite sides of it, make the adjacent angles, together equal to two right angles, these two straight lines shall be in one and the same straight line. At the point В in the straight...
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## The Elements of Euclid: The Errors by which Theon, Or Others, Have Long ...

Robert Simson - 1827 - 513 páginas
...XIV. THEOR. If , at a point, in a straight line, two other straight lines, upon the opposite sides of it, make the adjacent angles together equal to two right angles, these two straight lines shall be in one and the same straight line. At the point B in the straight...
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## Geometry Without Axioms; Or the First Book of Euclid's Elements. With ...

Thomas Perronet Thompson - 1833 - 150 páginas
...XIII. THEOBEM. — If, at a point in a straight line, two other straight lines, on the opposite sides of it, make the adjacent angles together equal to two right angles; those two other straight lines shall be in one and the same straight line. At the point B in the straight...
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## Library of Useful Knowledge: Geometry, plane, solid, and spherical [by ...

1835
...line . . . ax. 4 (J>) If at a point in a straight line two other straight lines upon opposite sides of it make the adjacent angles together equal to two right angles, these two straight unes shall be in one and the same straight line 5 (c) A straight line is the shortest...
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## The Elements of Euclid: viz. the first six books, together with the eleventh ...

Euclid, Robert Simson - 1835 - 513 páginas
...PROP. XIV. THEOR. If, at a point in a straight line, two other straight lines upon the opposite sides of it, make the adjacent angles, together equal to two right angles, these two straight lines shall be in one and the same straight line. At the point B in the straight...
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## The Element of Geometry

John Playfair - 1836 - 114 páginas
...PROP. II. THEOR. If, at a point in a straight line, two other straight lines on the opposite sides of it make the adjacent angles together equal to two right angles, these two straight lines shall be in the same straight line. At the point B in the straight line BD,...
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## The Teacher's Assistant in the "Course of Mathematics Adapted to the Method ...

1836 - 472 páginas
...angles. XIV. If, at a point in a straight line, two other straight lines, upon the op. posite sides of it, make the adjacent angles together equal to two right angles, these two straight lines are in one and the same straight line. XV. If two straight lines cut one another,...
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## A companion to Euclid: being a help to the understanding and remembering of ...

Euclides - 1837
...ad absurdum). Theorem. If, at a point in a straight line, two other straight lines on opposite sides of it make the adjacent angles together equal to two right angles, these two straight lines shall be in one and the same straight line. Steps of the Demonstration. Suppose...
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## The First Six and the Eleventh and Twelfth Books of Euclid's Elements: With ...

Euclid - 1837 - 390 páginas
...PROP. XIV. THEOR. IF, at a point in a straight line, two other straight lines on the opposite sides of it, make the adjacent angles together equal to two right angles, these two straight lines are in one and the same straight line. At the point B in the straight line...
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## Elements of Plane Geometry According to Euclid

Andrew Bell - 1837 - 240 páginas
...XIY. THEOREM. If, at a point in a straight line, two other straight lines, upon the opposite sides of it, make the adjacent angles together equal to two right angles, these two straight lines shiill be in one and the same straight line. At the point B in the straight...
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