 | Henry Major - 1873 - 588 sider
...AD is equal to DB, and the straight line AB is divided into two equal parts in the point D. XI. — To draw a straight line at right angles to a given...the same. Let AB be the given straight line, and C a point given in it ; it is required to draw a straight line from the point C at right angles to AB.... | |
 | Lewis Sergeant - 1873 - 182 sider
...BC, CD, and the angles included are equal. Therefore AD = DB (Prop. 2). Proposition 7.— Problem. To draw a straight line at right angles to a given straight line (AB), from a given point in it (C). CONSTRUCTION. — In AB take CD and CE equal. With centres D and... | |
 | Edward Atkins - 1874 - 428 sider
...the straight line AB is divided into two equal parts in the point DQEF Proposition 11. — Problem. To draw a straight line at right angles to a given...the same. Let AB be the given straight line, and C a given point in it. It is required to draw a straight line from the point C at right angles to AB.... | |
 | Euclides - 1874 - 342 sider
...The straight line AB is divided into two equal parts in the point DQEF PROPOSITION 11.— Problem. To draw a straight line at right angles to a given...the same. Let AB be the given straight line, and C a given point in it. It is required to draw a straight line from the point C at right angles DCE Construction.... | |
 | Euclides - 1874 - 120 sider
...vertical angle of an isosceles triangle also bisects the base at right angles. PROPOSITION 11. PROBLEM. To draw a straight line at right angles to a given...straight line, from a given point in the same. * Let AB bo ' • the given straight line, and C the given point in it. It is required to draw a straight line... | |
 | Francis Cuthbertson - 1874 - 400 sider
...L is j . to the other. PROPOSITION VII. // is always possible to draw a straight line perpendicular to a given straight line from a given point in the same. \l a J>\ A. as c Let BC be the given straight line, and A the given point in it. Then from A a straight... | |
 | Edward Atkins - 1876 - 130 sider
...the straight line AB is divided into two equal parts in the point DQEF Proposition 11. — Problem. To draw a straight line at right angles to a given...the same. Let AB be the given straight line, and C a given point in it. It is required to draw a straight line from the point C at right angles to AB.... | |
 | 1876 - 400 sider
...national English army which gave the Conqueror such a warm reception on the Hill of Senlac. EUCLID. (1.) To draw a straight line at right angles to a given straight line, from a given point in the same. State and prove the corollary. (2.) At a given point in a given straight line to make a rectilineal... | |
 | Richard Wormell - 1876 - 268 sider
...radius, are equal, and therefore the arcs are equal, and, consequently, so are the angles. PROBLEM IV. To draw a straight line at right angles to a given straight line from a given point in it. Let AB he the given straight line, and С the given point in it. With С as centre, and any convenient... | |
 | Euclides - 1879 - 146 sider
...(constr.) /. base AD = base DB (i.4) Wherefore the straight line, &c. QEF PROPOSITION XI. PROBLEM. To draw a straight line at right angles to a given...from a given point in the same. Let AB be the given st. line, and C the given pt. in it. It is required to draw a st. line from C _L AB. AD Constr. In... | |
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To draw a straight line at right angles to a given straight line, from a given point in the same. 
