| Schools inquiry commission - Education - 1868 - 742 pages
...their centres being produced shall pass through that point of contact, B. IIÍ. Prop. 11. 3. In BI **Prop. 12. " To draw a straight line perpendicular to a given straight line** of unlimited length from a given point without it, the following construction is given by Euclid :... | |
| James Maurice Wilson - Geometry - 1868 - 132 pages
...— This construction is usually effected in practice by means of the square. PROBLEM 4. To draw a **perpendicular to a. given straight line from a given point without it.** Let BCbe the given straight line, A the given point. Construction. With centre A describe a circle... | |
| Isaac Todhunter - Measurement - 1869 - 312 pages
...to meet the circumference again at F. Join CF. Then CF will be at right angles to AB. 46. To draw a **perpendicular to a given straight line from a given point without it.** Let AB be the given straight line, and C the given point without it. Take any two points D and E in... | |
| Euclid, Charles Peter Mason - Geometry - 1872 - 216 pages
...(Post. I.) 2. From the greater of two given straight lines to cut off a part equal to the less. 3. **To draw a straight line perpendicular to a given straight line from a given point** in the same. (I. 11.) 4. Through a given point to draw a straight line parallel to a given straight... | |
| Francis Cuthbertson - Euclid's Elements - 1874 - 400 pages
...former. Thus each of the arms of a right 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... | |
| Richard Wormell - 1876 - 268 pages
...at its middle point, С (Theorem XXI.) Therefore F and С determine this perpendicular. PROBLEM V. **To draw a straight line perpendicular to a given straight line from a given point without it.** Let AB be the straight line and M the given point. With M as centre, and any convenient radius, describe... | |
| Francis Cuthbertson (geometer.) - 1876 - 102 pages
...Therefore AFis perpendicular to BC. (Def.) Wherefore from a given point &c. QEF PROPOSITION XIII. To draw a **perpendicular to a given straight line from a given point without it.** \ Let A be the given point without the given straight line BC. It is required to draw from A a perpendicular... | |
| David Bain - Geometry - 1879 - 36 pages
...describe arcs cutting in G.' 'AD с~в 4. Draw the line С G which is perpendicular to A B. Problem 5. — **To draw a straight line perpendicular to a given straight line from a given point** C, above or below the line. (Let the point be above the line AB.) 1. With С as centre and any suitable... | |
| T S. Taylor - 1880 - 152 pages
...of a circle.and of a right angle : and the enunciation of Euc. I. 8 (page 46). General Enunciation. **To draw a straight line perpendicular to a given straight line from a given point without it.** Particular Enunciation. . c Given. — The straight line AB and the point C. Required. — To draw... | |
| 1880 - 160 pages
...abbreviations ABa and AB, CD are not permitted. Students are required to satisfy the Examiners in each Book. 1. **Draw a straight line perpendicular to a given straight line from a given point** in the same. 2. Enunciate and prove Euclid I. 26. 3. The lines which join the extremities of equal... | |
| |