 | George Irving Hopkins - Geometry, Plane - 1891 - 208 pages
...The line drawn from the vertex of a triangle to the middle point of the base is called a median. 97. Any side of a triangle is less than the sum of the other two, and greater than their difference. 98. The sum of the three angles of a triangle is equal to two right... | |
 | William C. Bartol - Geometry, Solid - 1893 - 112 pages
...drawn. 351. Two parallel lines cannot meet. 352. Two lines perpendicular to the same straight line 353. Any side of a triangle is less than the sum of the other two sides. 354. The sum of the three angles of a triangle is equal to two right angles. 355. Two triangles are... | |
 | Webster Wells - Geometry - 1894 - 398 pages
...altitude. 61. Since a straight line is the shortest line between two points (Ax. 6), it follows that Either side of a triangle is less than the sum of the other two sides. PROPOSITION XIV. THEOREM. 62. Either side of a triangle is greater than the difference of the other... | |
 | Charles Ambrose Van Velzer, George Clinton Shutts - Geometry - 1894 - 522 pages
...distances from any point in the perpendicular to the extremities of the line are equal. PROPOSITION VIII. Any side of a triangle is less than the sum of the other two. PROPOSITION IX. If a perpendicular be erected at the middle point of a straight line, the distances,... | |
 | Adelia Roberts Hornbrook - Geometry - 1895 - 222 pages
...Which is the longer, AB or A C+ CB ? 73. Show the truth of the following proposition : PRINCIPLE 3. — Any side of a triangle is less than the sum of the other two sides. 74. Cut three narrow strips of paper, one 10 inches long, the others each 5 inches long, and place... | |
 | John Macnie - Geometry - 1895 - 390 pages
...both acute ; (2) without the triangle if one of those angles is obtuse. PROPOSITION XIX. THEOEEM. 88. Any side of a triangle is less than the sum of the other two. Given : Any side BC of a triangle ABC ; To Prove : BC is less than AB + AC. Produce BA to D, so that... | |
 | Arthur Lefevre - Algebra - 1896 - 242 pages
...empiricism, — never to clip the growing tree at the top. Now every man (and every dog) knows that one side of a triangle is less than the sum of the other two sides ; but no one would suppose that this circumstance entitled every man to opinions concerning the conclusions... | |
 | Webster Wells - Geometry - 1898 - 250 pages
...angle. D C 61. Since a straight line is the shortest line between two points (Ax. 4), it follows that Any side of a triangle is less than the sum of the other two sides. PROP. XIV. THEOREM. 62. Any side of a triangle is greater than the difference of the other two sides.... | |
 | James Howard Gore - Geometry - 1898 - 232 pages
...77. Since a straight line is the shortest distance between two points (by 6), it follows that either side of a triangle is less than the sum of the other two. 78. By (77) BC < AB + AC. Transpose AB, then BC-AB<AC; that is, any side of a triangle is greater than... | |
 | Webster Wells - Geometry - 1899 - 450 pages
...angle. B D 61. Since a straight line is the shortest line between two points (Ax. 4), it follows that Any side of a triangle is less than the sum of the other two sides. PROP. XIV. THEOREM. 62. Any side of a triangle is greater than the difference of the other two sides.... | |
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Any side of a triangle is less than the sum of the other two sides... 
