 To draw a straight line perpendicular to a plane, from a given point above 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.  Calendar - Σελίδα 290των University of St. Andrews - 1896Πλήρης προβολή - Σχετικά με αυτό το βιβλίο
 | Robert Simson - 1806 - 546 σελίδες
...1. angle ABC is equal a to the angle DEF. straight lines, &c. QED Therefore, if two PROP. XI. PROB. TO draw a straight line perpendicular to a plane, from a given point above it. 9 Let A be the given point above the plane BH ; it is required to draw from the point A a... | |
 | John Playfair - 1806 - 320 σελίδες
...c 8. 1. ABC is equal0 to the angle DEF. Therefore, if two straight lines, &c. QED l PROP. X. PROB. TO draw a straight line perpendicular to a plane, from, a given point above it. Let A be the givep" point above the plane BH ; it is re- Book II. quired to draw from the... | |
 | Euclides - 1816 - 588 σελίδες
...the angle ABC is equal3 to the angle DEF. Therefore, if two straight lines, &c. QED PROP. XI. PROB. To draw a straight line perpendicular to a plane, from a given point above it. Let A be the given point above the plane BH ; it is required to draw from the point A a straight... | |
 | John Playfair - 1819 - 354 σελίδες
...angle ABC is equal (8. 1.) to the angle DEF. Therefore, if two straight lines, &c. Q, ED PROP. X. PROB. To draw a straight line perpendicular to a plane, from a given point above it. Let A be the given point above the plane BH ; it is required to draw from the poin,t A a... | |
 | Robert Simson - 1827 - 546 σελίδες
...Therefore, if two straight lines, &c. QED D • 9. 11. • 1 Ax. 1. •33.1. *8. 1. PROP. XI. PROB. To draw a straight line perpendicular to a plane, from a given point above it. Let A be the given point above the plane BH ; it is required to draw from the point A a straight... | |
 | John Playfair - 1829 - 210 σελίδες
...the angle ABC is equal to DEF (8. 1). Therefore, if two straight &c. QE D, PROPOSITION X. PROBLEM, To draw a straight line perpendicular to a plane, from a given point above it» Let A be the zrrcffl pees: t±ip*» ~Sx siSsee BH : k 2$ i to draw Iron; tfae poses A 4... | |
 | John Martin Frederick Wright - 1831 - 282 σελίδες
...two is a right angle. 2. In a given circle to inscribe a triangle equiangular to a given triangle. 3. To draw a straight line perpendicular to a plane from a given point above it. o 4. Shew that at any stage of the operation for finding the greatest common measure of two... | |
 | Euclid - 1835 - 540 σελίδες
...equal d to the angle DEF. straight lines," &c. QED the base DF; the Therefore, if two PROP. XI. PROB. To draw a straight line perpendicular to a plane, from a given point above it. Let A be the given point above the plane BH; it is required to draw from the point A a straight... | |
 | Brook Taylor - 1835 - 174 σελίδες
...perpendicular to AVC. This follows from the llth Proposition, llth book of Euclid, where it is demonstrated how to draw a straight line perpendicular to a plane from a given point above it. Fig. 22. D THEOREM I. It is considered to be an acknowledged truth, that a line drawn from... | |
 | A. Bell - 1837 - 180 σελίδες
...AC to the base DF, the angle ABC is equal (PI. Ge. I. 8) to the angle DEF. PROPOSITION X. THEOREM. To draw a straight line perpendicular to a plane, from a given point above it. Let A be the given point above the plane BH ; it is required to draw from the point A a straight... | |
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