| James Howard Gore - Geometry - 1899 - 266 pages
...a quadrilateral have two of its opposite sides parallel, and the other two equal but not parallel, **any two of its opposite angles are together equal to two right angles.** 40. The sum of the perpendiculars from any point in the interior of an equilateral triangle is equal... | |
| Robert Hebert Quick - Teachers - 1899 - 564 pages
...We wish to recall that proposition. Arbitrary association of ideas immediately suggests the words, **'The three angles of every triangle are equal to two right angles.'** But at first these are words only : our mind runs along an established train of sounds. By well-formed,... | |
| James Allanson Picton - Ethics - 1907 - 282 pages
...from are always verifiable. The skilled surveyor's measurements by triangulation assume always that **the three angles of every triangle are equal to two right angles.** And any one who wantsvefification can have it, either roughly and imperfectly by the use of instruments... | |
| Boyd Henry Bode - Logic - 1910 - 348 pages
...predicate. ' William Pitt was a great statesman ' = ' There was a great1 statesman named William Pitt '; ' **The three angles of every triangle are equal to two right angles** ' = ' There are figures known as triangles with their three angles equal to two right angles '; ' All... | |
| Electronic journals - 1914 - 662 pages
...for such a proposition as " My first penitent was a murderer " seems to be offered as adequate for " **The three angles of every triangle are equal to two right angles** ". Granting for the sake of argument that the first proposition really means that the same individual... | |
| Horatio Scott Carslaw - Geometry - 1916 - 193 pages
...geometry holds only on the assumption that the Constant is infinite. Only in this case is it true that **the three angles of every triangle are equal to two right angles** ; and this can easily be proved, as soon as we admit that the Constant is infinite." This document... | |
| William Henry Samuel Jones - Reasoning - 1916 - 82 pages
...up. Nothing is taken on trust ; every step is understood and commands our intellectual assent. That **the three angles of every triangle are equal to two right angles** is a proposition which cannot be denied by anyone who has assented to the definitions and axioms which... | |
| Hall V. Williams - Tinsmithing - 1917 - 382 pages
...its defect from a right angle. 2. The supplement of an angle is its defect from two right angles. 3. **The three angles of every triangle are equal to two right angles** : hence the oblique angles of a right angled triangle are each other's complements. 4. The sum of the... | |
| Hall V. Williams - Tinsmithing - 1920 - 378 pages
...its defect from a right angle. 2. The supplement of an angle is its defect from two right angles. 3. **The three angles of every triangle are equal to two right angles** : hence the oblique angles of a right angled triangle are each other's complements. 4. The sum of the... | |
| René Descartes - Philosophy - 1984 - 444 pages
...cannot divide it, at least in our thought). And because of these facts it can be truly asserted that **the three angles of every triangle are equal to two right angles** and that every body is divisible. Fifthly, \ ask my readers to spend a great deal of time and effort... | |
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