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The angles which one straight line makes with another upon one side of i't, are either two right angles, or are together eqval to two right angles.
Elements of Geometry: Containing the First Six Books of Euclid, with a ... - Σελίδα 19
των Euclid, John Playfair - 1853 - 317 σελίδες
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## Elements of geometry, based on Euclid, books i-iii

Edward Atkins - 1876 - 119 σελίδες
...straight Una makes witJi another upon one side of it, are either two right angles, or are together equal to two right angles. Let the straight line AB make...CD, upon one side of it, the angles CBA, ABD. These angles shall either be two right angles, or shall together be equal to two right angles. PROOF. —...

## Primer of geometry

...straight line makes with anotJier upon one side of it are either two right angles or are together equal to two right angles. Let the straight line AB make with CD upon one side of it the L s ABC, ABD. These shall either be two right angles or shall together be equal to two right angles....

## Annual Report

1876
...First Book. 2. Show that the angles which one straight line makes with another upon one side of it, are either two right angles, or are together equal to two right angles. 3. Prove that if one side of a triangle be produced, the exterior angle is greater than either of the...

## The Pupil teacher, a monthly educational journal. H. Major, ed

Henry Major
...from the given angle ? 2. The angles which one straight line makes with another upon one side of it are either two right angles, or are together equal to two right angles. Why is this proposition a theorem ? PUPIL TEACHERS AT END OF TflntB AND FOURTH 'Y%AS.-r-Arithmetic....

## Euclid's Elements of Geometry: Chiefly from the Text of Dr. Simson, with ...

Robert Potts - 1876 - 403 σελίδες
...it, are either two right angles, or are together equal to two right angles. Let the straight line AS make with CD, upon one side of it, the angles CBA, ABD. Then these shall be either two right angles, or, shall be together, equal to two right angles. E A...

## Elements of geometry, based on Euclid, book i

Edward Atkins - 1877
...straight line makes with another upon one side of it, are either two right angles, or are together equal to two right angles. Let the straight line AB make...CD, upon one side of it, the angles CBA, ABD. These angles shall either be two right angles, or shall together be equal to two right angles. PROOF. —...

## Examination Papers for Science Schools and Classes

...that the two angles which one right line makes with another (on the same side of either right line) are either two right angles, or are together equal to two right angles. (8.) 9. Prove that the complements of the parallelograms, which are about the diameter of any parallelogram,...

## Elements of Geometry, Conic Sections, and Plane Trigonometry

Elias Loomis - 1877 - 443 σελίδες
...PROPOSITION II. THEOREM. The angles which one straight line makes with another, upon one side of it, are either two right angles, or are .together equal to two right angles. Let the straight line AB make with CD, upon one side of it, the angles ABC, ABD ; these are either...

## The College calendar. [Continued as] The College calendar for the United ...

Scotland free church
...Examiner—-Rev. JAMES MATTHEW, BD 1. The angles which one straight line makes with another, upon one side of it, are either two right angles, or are together equal to two right angles. 2. To make a triangle, of which the sides shall be equal to three given straight lines ; but any two...

## Moffatt's pupil teachers' course (ed. by T. Page). Candidates, 2nd (-4th) year

Moffatt and Paige - 1879
...straight line makes with another upon one side of it are either two right angles or are together equal to two right angles. Let the straight line AB make with CD, upon one side of it, the angles CB A, AB D. Then these two angles are either two right angles or are together equal to two right angles....