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 Bøker Bok ANY two angles of a triangle are together less than two right angles. The Elements of Euclid - Side 20
av Euclid - 1838 - 416 sider
Uten tilgangsbegrensning - Om denne boken ## THE QUADRATURE OF THE CIRCLE, THE SQUARE ROOT OF TWO, AND THE RIGHT-ANGLED ...

WILLIAM ALEXANDER MYERS - 1874
...or theorem, as for example : To describe an equilateral triangle on a given finite straight line, or any two angles of a triangle are together less than two right angles. After the general enunciation follows the discussion of the proposition. First, the enunciation is...
Uten tilgangsbegrensning - Om denne boken ## Annual Report

1876
...Define the terms , an equilateral triangle, an isosceles triangle, a scalene triangle. 4. Prove that any two angles of a triangle are, together, less than two right angles. Л. PYoru a given point draw a straight line equal to a given straight line. FIRST AND SECOND DIVISION....
Uten tilgangsbegrensning - Om denne boken ## Modern geometry [ed.] with an appendix by W.B. Jack

Richard Wormell - 1876
...another, and likewise those which are terminated in the other extremity, equal to one another. 17. Any two angles of a triangle are together less than two right angles. .. . If from the ends of one side of a triangle, there be drawn two straight lines to , a point within...
Uten tilgangsbegrensning - Om denne boken ## SYLLABUS OF PLANE GEOMETRY

1876
...sides those are equal which are opposite to equal angles. [By Superposition and Theor. 9.] THEOR. 18. Any two angles of a triangle are together less than two right angles. COR. i. If a triangle has one right angle or obtuse angle, its remaining angles are acute. COR. 2....
Uten tilgangsbegrensning - Om denne boken ## Examination Christmas,1875

...all equal, each of the lines is in the same line with one, and at right angles to two of the others. Any two angles of a triangle are together less than two right angles. 3. Write out the three postulates of Euclid. The opposite sides of every quadrilateral rectangular...
Uten tilgangsbegrensning - Om denne boken ## Elements of Geometry Containing Books I. to VI. and Portions of Books XI ...

James Hamblin Smith - 1876 - 348 sider
...line ; the perpendicular will fall on the side of the acute angle. PROPOSITION XVII. THEOREM. A ny two angles of a triangle are together less than two right angles. 0 Let ABC be any A . Then must any two of its is be together less than two rt. L s. Produce BC to D....
Uten tilgangsbegrensning - Om denne boken ## Euclid's Elements of Geometry: Chiefly from the Text of Dr. Simson, with ...

Robert Potts - 1876 - 403 sider
...than the angle ABC. Therefore, if one side of a triangle, &c. QED PROPOSITION XVIL THEOREM. Any tieo angles of a triangle are together less than two right angles, Let ABCbe any triangle. Then any two of its angles together shall be less than two right angles. Produce...
Uten tilgangsbegrensning - Om denne boken ## Elements of geometry, based on Euclid, Bøker 1-3

Edward Atkins - 1876
...&c. QED Proposition 17. — Theorem. Any two angles of a triangle are toyetJier less tJian two rigid angles. Let ABC be any triangle. Any two of its angles together shall be less than two right angles. CONSTRUCTION. — Produce BC to D. PROOF. — Because ACD is the...
Uten tilgangsbegrensning - Om denne boken ## Euclid, book i., propositions i. to xxvi., with exercises and alternative ...

Euclides - 1877
...difference of any two sides of a triangle is greater than the third side. PROPOSITION XVII. THEOREM. Any two angles of a triangle are together less than two right angles. Let ABC be a triangle ; then shall any two of its angles together be less than two right angles. Construction....
Uten tilgangsbegrensning - Om denne boken ## The College calendar. [Continued as] The College calendar for the United ...

Scotland free church
...sides also which subtend, or are opposite to the equal angles, shall be equal to one another. Or—Any two angles of a triangle are together less than two right angles. 3. If a straight line be divided into any two parts, the square on the whole line is equal to the squares...
Uten tilgangsbegrensning - Om denne boken