 | Euclides - 1862 - 140 pages
...ax. 1, 3; def. 15.) Given. — Let A be the given point, and BC the given straight line. Sought. — It is required to draw from the point A a straight line equal to BC. Construction. — 1. From the point A to B draw the straight line AB. (post. 1.) EUCLID S ELEMENTS.... | |
 | Euclides - 1862 - 172 pages
...point A to K draw the straight line AB ; (post. i.) upon AB describe the equilateral triangle DAB, (i. 1) and produce the straight lines DA, DB, to E and F ; from the centre B, at the distance BC, describe the circle CGH, (post. 3) and from the centre D,... | |
 | Euclides - 1864 - 262 pages
...CE, therefore BC is equal to AB; but it has been proved that AC is equal to AB ; therefore AC, B Care each of them equal to AB; but things which are equal...1.) upon AB describe the equilateral triangle ABD, (l. 1.) and produce the straight lines DA, DB to E and F; (post. 2.) from the center B, at the distance... | |
 | Euclides - 1864 - 448 pages
...perpendicular to a plane, from a given point above it. Let A he the given point above the plane BH. It is required to draw from the point A a straight line perpendicular to the plane BH. In the plane draw any straight line BC, and from the point A draw AD... | |
 | Euclides - 1865 - 80 pages
...point to draw a straight line equal to a given straight line. Let A be the given point, and BC the given straight line, it is required to draw from the point A a straight line equal to BC. From A as a centre, with a radiant equal to BC, describe (Post. 3) the circle DEF, and from A draw a straight... | |
 | Euclides - 1865 - 402 pages
...(References— Prop. I. 11, 12, 31; XI. 4, 8, def. 3.) Let A be the given point above the plane BH. It is required to draw from the point A a straight line perpendicular to the plane BH. EA R V CONSTRUCTION In the plane draw any straight line BC, and from... | |
 | Robert Potts - 1865 - 528 pages
...perpendicular to a plane, from a given point abure it. Let A be the given point above the plane BH. It is required to draw from the point A a straight line perpendicular to the plane BII. In the plane draw any straight line BC, and from the point A draw AD... | |
 | Euclid, Isaac Todhunter - Euclid's Elements - 1867 - 424 pages
...perpendicular to a given plane, from a given point without it. Let A be the given point without the plane BH: it is required to draw from the point A a straight line perpendicular to the plane BH. Draw any straight line BC in the plane BH, and from the point A draw... | |
 | Euclid, Isaac Todhunter - Euclid's Elements - 1867 - 426 pages
...perpendicular to a given plane, from a given point without it. Let A be the given point without the plane BH: it is required to draw from the point A a straight line perpendicular to the plane BH. Draw any straight line BC in the plane BH, and from the point A draw... | |
 | Robert Potts - 1868 - 434 pages
...perpendicular to a plane, from a given point ubuee it. Let A be the given point above the plane BH. It is required to draw from the point A a straight line perpendicular to the plane BH. In the plane draw any straight line BC, and from the point A draw AD... | |
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From a given point to draw a straight line equal to a given straight line. Let A be the given point, and BC the given straight line; it is required to draw from the point A a straight line equal to BC. 
