Books Books
If one side of a triangle be produced, the exterior angle is greater than either of the interior opposite angles.
The first six books of the Elements of Euclid, with numerous exercises - Page 13
by Euclides - 1853 - 147 pages

## Woolwich Mathematical Papers for Admission Into the Royal Military Academy ...

Eldred John Brooksmith - Mathematics - 1901 - 368 pages
...attached to accuracy. ] 1. Define plane rectilineal angle, circle, gnomon, similar rectilineal figures. 2. If one side of a triangle be produced, the exterior...greater than either of the interior opposite angles. 3. The straight lines which join the extremities of two equal and parallel straight lines towards the...

## Henley's Encyclopaedia of Practical Engineering and Allied Trades ...

1906 - 576 pages
...of any triangle in marking out work, and the methods of are together equal to two right angles. 5. If one side of a triangle be produced, the exterior angle is equal to the sum of the two interior and opposite angles. RIGHT making angles of different degrees...

## Introduction and books 1,2

Euclid - Mathematics, Greek - 1908 - 550 pages
...generally given in the text-books as Corollary 2. PROPOSITION 16. In any triangle, if one of the sides be produced, the exterior angle is greater than either of the interior and opposite angles. Let ABC be a triangle, and let one side of it BC be produced to D ; 5 I say that...

## A School Geometry, Parts 1-4

Henry Sinclair Hall - 1908 - 286 pages
...are equal in all respects. 24 THEOREM 8. [Euc. I. 16.] If one side of a triangle is produced, then the exterior angle is greater than either of the interior opposite angles. 28 COR. 1. Any two angles of a triangle are together less than two right angles. 29 COR. 2. Every triangle...

## Monographs on Topics of Modern Mathematics, Relevant to the Elementary Field

Jacob William Albert Young - Mathematics - 1911 - 432 pages
...angles the two rays will be in the same line with one another. 16. In any triangle, if one of the sides be produced the exterior angle is greater than either of the interior and opposite angles. 17. In any triangle two angles taken together in any manner • leas than two...

## Special Reports on Educational Subjects, Volumes 26-27

Great Britain. Board of Education - Education - 1912 - 1044 pages
...and the included angle of another triangle, the triangles are equal in all respects. 2. Prove that if one side of a triangle be produced, the exterior angle is equal to the sum of the two interior and opposite angles. 3. From the angular points S, C of a triangle...

## The Teaching of Mathematics in the United Kingdom

Great Britain. Board of Education - Mathematics - 1912 - 632 pages
...and the included angle of another triangle, the triangles are equal in all respects. 2. Prove that if one side of a triangle be produced, the exterior angle is equal to the sum of the two interior and opposite angles. 3. From the angular points B, C of a triangle...

## Treasure

William Henry Williamson - 1915 - 376 pages
...working at his lessons. George Harvey learnt axioms and postulates, how to demonstrate clearly that if one side of a triangle be produced the exterior angle is greater than the interior and opposite angle, and the two interior and opposite angles taken together are less than...