 | Royal Philosophical Society of Glasgow - Science - 1879 - 636 pages
...of acting independently of each other, and in co-operation with each other. When I demonstrate that the three angles of every triangle are equal to two right angles, or that in a righi^angled triangle the square upon the side subtending the right angle is equal to... | |
 | John Carroll (art master.) - Geometry - 1881 - 100 pages
...angle at M. Produce the lines till they meet in O. The angle at O will be equal to the angle at N ; for the three angles of every triangle are equal to two right angles. — Euclid i. 32 cor. Problem 15. — To construct an isosceles triangle, the base FG and the vertical... | |
 | Thomas Low Nichols - 1881 - 132 pages
...abstinence, which is safe and sure. All this is like saying over and over again, two and two make four : the three angles of every triangle are equal to two right angles : things which are equal to the same thing are equal to each other. A natural diet is always a condition... | |
 | John Fry Heather - Scientific apparatus and instruments - 1884 - 566 pages
...the two interior angles HIA and HAT; and because the vertical angles ATH and iv E are equal, and that the three angles of every triangle are equal to two right angles, therefore the two angles VIE and s EH are, together, equal to the two angle? AK v and HA i, and therefore... | |
 | Humanities - 1885 - 480 pages
...isosceles, and lastly in the scalene; those that came after them proved the general theorem as follows: — "The three angles of every triangle are equal to two right angles." So also in the sections of a cone ; for they viewed the so-called " section of the rightangled cone... | |
 | George William Usill - Surveying - 1889 - 306 pages
...the two interior angles H i A and HA i ; and because the angles A v H and iv E are equal, and that the three angles of every triangle are equal to two right angles, therefore the two angles VIE and s EH are together equal to the two angles AH v and HA i, and therefore... | |
 | George Johnston Allman - Geometry - 1889 - 266 pages
...and lastly in the scalene ; those that came after them proved the general theorem as follows : — " The three angles of every triangle are equal to two right angles." So also in the sections of a cone ; for they viewed the so called " section of the rightangled cone... | |
 | Bernard Bosanquet - Logic - 1895 - 188 pages
...Predicate. " William Pitt was a great statesman "=" There ' was a great 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 " ; "... | |
 | Bernard Bosanquet - Logic - 1897 - 188 pages
...Predicate. " William Pitt was a great statesman " = " There was a great 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... | |
 | Education - 1895 - 696 pages
...Birmingham can't understand! Get to the heart of it. Don't grant him anything. Don't be quite sure that the three angles of every triangle are equal to two right angles; and don't at all allow, until you are yourself fairly convinced, that parallel straight lines produced... | |
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When you have proved that the three angles of every triangle are equal to two right angles... 
