| Horatio Nelson Robinson - 1853 - 334 σελίδες
...PROBLEM 1 . To Used a given finite straight line. Let AB be the given line, and from its extremities, A and B, with any radius greater than the half of AB (Post. 3), describe arcs, cutting each other in n and m. Join n and m; and (7, where it cuts ABf will... | |
| William Somerville Orr - 1854 - 534 σελίδες
...describe arcs cutting each other in the point D. ^ith the same centres, and less equal radii, also greater than the half of AB, describe arcs cutting each other in the point Ь ; join DE, and produce the line until it cuts AB in C, which will be the point of bisection... | |
| Richard Burchett - 1855 - 164 σελίδες
...ELEMENTARY PROBLEMS то SECTION I. FIGS. 1 and 2. To bisect a line AB, either straight or curved. From A and B, with any radius greater than the half of AB, describe arcs cutting each other in с and d. From с draw a right line to d, and it will bisect line AB. FIG. 3. To draw a line perpendicular... | |
| Peter Nicholson - 1856 - 518 σελίδες
...To bisect a given straight line, AB, by a perpendicular. From the points A and B, with any distance greater than the half of AB, describe arcs cutting each other in C and D ; join CD. and this line will bisect AB perpendicularly. n PROBLEM 6. 143. From a given point,... | |
| Horatio Nelson Robinson - 1878 - 564 σελίδες
...PROBLEM I. To bisect a given finite straight line. Let AB be the given line, and from its extremities, A and B, with any radius greater than the half of AB, describe arcs, cutting each other in n and m. Join n and m ; and C, where it cuts AB, will be the middle of the line required. Proof, (th.... | |
| William R. Maguire - 1890 - 460 σελίδες
...Neatness and care in drawing c geometrical figures should be impressed upon the students ; the object of such practice is to secure accuracy, which can...will bisect the line A B." Now, although that is the •B simplest problem in practical geometry, we can perhaps understand how much better and clearer... | |
| Arnold Lupton - 1902 - 494 σελίδες
...Practical Geometry. (1) To bisect a line AB (Fig. 72) ; that is, to divide it into two equal parts. From A and B, with any radius greater than the half of AB, describe arcs cutting each other in c and d. From r draw a straight line to d, and it will bisect the line AB. (2) To draw a line perpendicular... | |
| |