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" Any two sides of a spherical triangle are together greater than the third side. "
Spherical Trigonometry, for the Use of Colleges and Schools: With Numerous ... - Σελίδα 12
των Isaac Todhunter - 1879 - 158 σελίδες
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An Introduction to the Theory and Practice of Plane and Spherical ...

Thomas Keith - 1810 - 478 σελίδες
...distant from the angular point, for CB, and not IH, is the measure of the angle BAC, PROPOSITION IV. (S) Any two sides of a spherical triangle are together greater than the third side. DEMONSTRATION. Let ABC be the spherical triangle, AJ| and EC together, are greater than, AC. Since...

A Course of Mathematics ...: Composed for the Use of the Royal Military ...

Charles Hutton - 1811 - 404 σελίδες
...premised and comprehended, the student may pass to the consideration of the following theorems. THEOREM r. Any Two Sides of a Spherical Triangle are together Greater than the Third. This proposition is a necessary consequence of the truth, that the shortest distance between any two...

A Course of Mathematics: For the Use of Academies as Well as ..., Τόμος 2

Charles Hutton - 1812 - 624 σελίδες
...premised and comprehended, the student may pass to the consideration of the following theorems. THEOREM I. Any Two Sides of a Spherical Triangle are together Greater than the Third. This proposition is a necessary consequence of the truth, that the shortest distance between any two...

A treatise on navigation, and nautical astronomy

Edward Riddle - 1824 - 572 σελίδες
...angles are equal, the angle EDB is equal to the angle EDC, therefore AC is equal to A B. PROPOSITION V. Any two sides of a spherical triangle are together greater than the third side. Let AB С be a spherical triangle, and letD be the centre of the sphere, join AD, BD, and С D. . Then...

An Introduction to the Theory and Practice of Plain and Spherical ...

Thomas Keith - 1826 - 504 σελίδες
...187-), and DE is the hypothenuse, being the supplement of the angle в (S. 136.) PROPOSITION v. (Y) Any two sides of a spherical triangle are together greater than the third side. DEMONSTRATION. Let ABC be a spherical triangle, any two sides AC and вс, are together greater than...

An Analytical Treatise on Plane and Spherical Trigonometry, and the Analysis ...

Dionysius Lardner - 1828 - 434 σελίδες
...'SECTION II. Of spherical triangles . • • • • 73 (126.) Definition of a spherical triangle. (127.) Any two sides of a spherical triangle are together greater than the third side. (128.) Cor. The difference of any two sides is less than the third side. (129.) The sum of the three...

A Concise System of Mathematics ...

Alexander Ingram - 1830 - 458 σελίδες
...spherical triangle be equal to one another, the sides opposite to them are also equal. PROP. VIII. Any two sides of a spherical triangle are together greater than the third side, and the difference of any two sides is less than the third. Cor. The arc which passes through any two...

Geometry, Plane, Solid, and Spherical, in Six Books: To which is Added, in ...

Pierce Morton - 1830 - 584 σελίδες
...same point, the sum of all the angles about that point will be equal to four right angles. PROP. 9. Any two sides of a spherical triangle are together greater than the third fide ; and any side of a spherical triangle ig greater than the difference of the other two. Let А...

The Elements of Euclid: viz. the first six books, together with the eleventh ...

Robert Simson - 1835 - 544 σελίδες
...(4. 1.) and consequently the sides AC, BC of the spherical triangle are equal. QED PROP. VI. FIG. 4. Any two sides of a spherical triangle are together greater than the third. Let ABC be a spherical triangle, any two sides AB, BC are greater than the third side AC. Let D be...

Library of Useful Knowledge: Geometry plane, solid, and spherical [by Pierce ...

1835 - 684 σελίδες
...such relations exist as would render the expressions of any of the remaining parts impossible. (A.) Any two sides of a spherical triangle are together greater than the third, and all three sides together are less than a whole, circle. In this proposition we must remember (5)...




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