 T-- square place the triangle so that the other 45-degree angle is in the position occupied by the first. If the two 45-degree angles coincide they are accurate. Triangles are very convenient in drawing lines at right angles to the T-square. The method...  Cyclopedia of Drawing - Page 20by American School (Lansing, Ill.) - 1906Full view - About this book
 | 1902 - 486 pages
...line EF as shown in Fig. 9. Now without moving the T-- square place the triangle Fig. 8. r/ Fig. 9. so that the other 45-degree angle is in the position...by the first. If the two 45-degree angles coincide they are accurate. Triangles are very convenient in drawing lines at right angles to the T-square.... | |
 | American School (Chicago, Ill.) - Engineering - 1903 - 414 pages
...working edge of the T-square, and draw the line EF as shown in Fig. 9. Now without moving the Tsquare place the triangle so that the other 45-degree angle...by the first. If the two 45-degree angles coincide they are accurate. Triangles are very convenient in drawing lines at right angles to the T-square.... | |
 | American School (Chicago, Ill.) - Engineering - 1906 - 586 pages
...T-square, as shown in Fig. 8. Now draw the line 0 D, which should be perpendicular to the edge of tbe T-square. The same triangle should then be placed...by the first. If the two 45-degree angles coincide they are accurate. Triangles are very convenient in drawing lines at right angles to the T-square.... | |
 | Drawing - 1906 - 424 pages
...90 degrees the left-hand edge of the triangle should exactly coincide with the line C D. B Fig. 8. To test the accuracy of the 45-degree triangles, first...by the first. If the two 45-degree angles coincide they are accurate. Fig. 9. Triangles are very convenient in drawing lines at right angles to the T-square.... | |
 | Howard Monroe Raymond - Machine-shop practice - 1906 - 716 pages
...and draw the line EF as shown in Fig. 9. Now without moving the T-- square place the triangle Fig. 9. so that the other 45-degree angle is in the position...angle with the horizontal, by placing them on the board as shown in Fig. 11. Suppose the line EF (Fig. 12) is drawn at any anjle. and we wisli to draw... | |
 | American School (Chicago, Ill.) - Engineering - 1906 - 580 pages
...working edge of the T-square, and draw the line EF as shown in Fig. 9. Now without moving the Tsquare place the triangle so that the other 45-degree angle...by the first. If the two 45-degree angles coincide they are accurate. Triangles are very convenient in drawing lines at right angles to the T-square.... | |
 | American School (Lansing, Ill.) - Architecture - 1907 - 360 pages
...convenient for most work, although there are many cases where a small triangle measuring about 4 inches Fig. 8. on a side will be found useful. Two triangles...by the first. If the two 45-degree angles coincide they are accurate. Triangles are very convenient in drawing lines at right angles to the T-square.... | |
 | Howard Monroe Raymond - 1908 - 426 pages
...of the T-square, and draw the line EF as shown in Fig. 9. Now without moving the TL Fig. 8. Fig. 9. square place the triangle so that the other 45-degree...by the first. If the two 45-degree angles coincide they are accurate. Triangles are very convenient in drawing lines at right angles to the T-square.... | |
 | American School of Correspondence - Civil engineering - 1908 - 474 pages
...working edge of the T-square, aud draw the line EF as shown in Fig. 9. Now without moving the Tsquare place the triangle so that the other 45-degree angle...by the first. If the two 45-degree angles coincide they arc accurate. Triangles are very convenient in drawing lines at right angles to the T-square.... | |
 | Heating - 1909 - 414 pages
...CD, which should bo perpendicular to the edge of the T-square. The same triangle should then Fig. 8. be placed in the position shown at B. If the right...by the first. If the two 45-degree angles coincide they are accurate. Triangles are very convenient in drawing lines at right angles to the T-square.... | |
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