 | Euclid, Isaac Todhunter - Euclid's Elements - 1867 - 424 pages
...other four-sided figures besides these are called trapeziums. 35. Parallel straight lines are such _ as are in the same plane, and which being produced ever so far both ways — • do not meet. [Note. The terms oblong and rhomboid are not often used. Practically the following definitions are... | |
 | Robert Potts - 1868 - 434 pages
...angles. XXXIV. All other four-sided figures besides these, are called Trapeziums. XXXV. Parallel straight lines are such as are in the same plane, and which...being produced ever so far both ways, do not meet. A. A parallelogram is a four-sided figure, of which the opposite sides are parallel: and the diameter,... | |
 | Isaac Todhunter - Measurement - 1869 - 312 pages
...than a right angle. An acute angle is an angle which is less than a right angle. 9. Parallel straight lines are such as are in the same plane, and which being produced ever so far both ways do not meet. 10. A rectilineal figure is a figure which is bounded by straight lines; the boundaries of the figure... | |
 | Euclides - 1870 - 270 pages
...seen by all his guests. 35. Parallel straight lines (paralleelos, placed along opposite to each other) are such as are in the same plane, and which being produced ever so far both ways, do not meet; as st. lines AB, CD. The least objectionable of the many definitions proposed, from which we may reason... | |
 | Family welfare association - 1871 - 276 pages
...wife. CHAPTER II. Of Parallel Activities. IA.RALLEL lines," saith Euclid (but I quote from memory), " are such as are in the same plane, and which being produced ever so far both ways do not meet." Fain would I see the twin Christian activities, — zeal for souls, and zeal for bodies, — do likewise.... | |
 | Elias Loomis - Geometry - 1871 - 302 pages
...angle is one which .'s greater than a right angle. 12. Parallel straight lines are such as are a tha same plane, and which, being produced ever so far both ways, do not meet. 13. A plane figure is a plane terminated on all sides bj .ines either straight or curved. If the lines... | |
 | Henry Major - Student teachers - 1873 - 588 pages
...angles. XXXIV. All other four-sided figures besides these are called trapeziums. XXXV. Parallel straight lines are such as are in the same plane, and which,...being produced ever so far both ways, do not meet. POSTULATES. I. Let it be granted that a straight line may be drawn from any one point to any other... | |
 | Euclides - 1874 - 120 pages
...its angles right angles. 34. Any four-sided figure is called a Quadrilateral. 35. Parallel straight lines are such as are in the same plane, and which being produced ever so far both ways do not meet. XOTE 1. A Parallelogram is a quadrilateral which has its opposite sides parallel. 5. A Rectangle is... | |
 | Euclides - 1874 - 342 pages
...four-sided figures besides these, are called Trapeziums. 35. Parallel straight lines are such as are ia the same plane, and which, being produced ever so far both ways, do not meet. A. A parallelogram is a four-sided figure, of which the opposite sides are parallel ; and the diameter,... | |
 | Robert Potts - Geometry - 1876 - 446 pages
...angles. XXXIV. All other four-sided figures besides these, are called Trapeziums. XXXV. Parallel straight lines are such as are in the same plane, and which...being produced ever so far both ways, do not meet. A. A parallelogram is a four-sided figure, of which the opposite sides are parallel: and the diameter,... | |
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Parallel straight lines are such as are in the same plane, and which, being produced ever so far both ways, do not meet. 
