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If a straight line fall upon two parallel straight lines, it makes the alternate angles equal to one another...
The Elements of Euclid; viz. the first six books, together with the eleventh ... - Page 22
by Euclides - 1834
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## Elements of geometry, containing books i. to vi.and portions of books xi ...

Euclides, James Hamblin Smith - Geometry - 1872 - 349 pages
...:. AB and CD are parallel. Def. 26. QEI). PROPOSITION XXVIII. THEOREM. If a straight line, falling upon two other straight lines, make the exterior angle...equal to the interior and opposite upon the same side oj' the line, or make the interior angles upon the same side together equal to two right angles; the...
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## The Acting Teacher's and Student's in Training Guide and Text Book for ...

Henry Major - Student teachers - 1873
...line fall upon two parallel straight lines, it makes the alternate angles equal to one another . and the exterior angle equal to the interior and opposite upon the same side ; and likewise the two interior angles upon the same side together equal to two right angles. Let the...
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## New Elementary Geometry: With Practical Applications; a Shorter Course, Upon ...

Benjamin Greenleaf - Geometry - 1873 - 176 pages
...alternate angles equal; also any exterior angle equal to the interior and opposite angle; and the two interior angles upon the same side together equal to two right angles. Let the straight line EF inter- E sect the parallel lines AB, CD; the \ T alternate angles AG II, GHD...
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## Euclidian Geometry

Francis Cuthbertson - Euclid's Elements - 1874 - 349 pages
...easily deduced the following Theorems : If a straight line, falling upon two other straight lines, makes the exterior angle equal to the interior and opposite upon the same side of the line, the two straight lines shall be parallel. c /G JD Let the straight ImeEFGH, falling upon the two straight...
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## A School Euclid. Being Books I.&II. of Euclid's Elements. With Notes ...

Euclides - 1874
...to CD. Therefore, if a straight line, &c. QED PROPOSITION 28. THEOREM. If a straight line falling on two other straight lines, make the exterior angle equal to the interior and opposite angle on the same side of tlie line, or make the interior angles on the same side together equal to...
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## Pure mathematics, Volume 1

Edward Atkins - 1874
...line fall upon two parallel straightlines, it makes the alternate angles equal to one anotlier, and the exterior angle equal to the interior and opposite upon the same side; and also tlie two interior angles upon the same side together equal to tico right angles. Let the straight...
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## The Elements of Euclid, containing the first six books, with a selection of ...

Euclides - 1874
...line fall upon two parallel straight lines, it makes the alternate angles equal to one another ; and the exterior angle equal to the interior and opposite upon the same side ; and likewise the two interior angles upon the same side together equal to two right angles. Let the...
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## New Elementary Geometry with Practical Applications

Benjamin Greenleaf - Geometry - 1874 - 176 pages
...alternate angles equal; also any exterior angle equal to the interior and opposite angle; and the two interior angles upon the same side together equal to two right angles. Let the straight line EF inter- E sect the parallel lines AB, CD; the \ , alternate angles AGH, GHD...
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## Pure mathematics, Volume 1

Edward Atkins - 1874
...another, and the exterior angle equal to the interior and opposite upon the same side; and also the two interior angles upon the same side together equal to two right angles. Let the straight line EF fall upon the parallel straight lines AB, CD; The alternate angles AGH, GHD...
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## Examination Christmas,1875

...formed whose sides arc parallel to those of the original triangle. 1. If a straight line falling on two other straight lines make the exterior angle equal to the interior and opposite angle on the same side of the line, the two straight lines shall be parallel to one another. 2. Parallelograms...
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