| Euclides - 1842
...which is greater than a right angle. XII. An acute angle is that which is less than a right angle. **XIV. A figure is that which is inclosed by one or...figure to the circumference are equal to one another.** XVL This point is called the centre of the circle. XVII, A diameter of a circle is a straight line... | |
| John Playfair - Euclid's Elements - 1842 - 317 pages
...contained in a figure, without any reference to the nature of the line or lines which bound it.m 1 1 . **A circle is a plane figure contained by one line,...figure to the circumference, are equal to one another** . 12. And this point is called the centre of the circle. 13. A diameter of a circle is a straight line... | |
| T H. Howe - 1842
...taken and joined by a straight line, the straight line will lie altogether in that surface or plane. FA **Circle is a plane figure, contained by one line which...figure to the circumference, are equal to one another.** c That point within the circle which is thus equally distant from the circumference, is called the... | |
| William Pease - Geometry - 1843 - 68 pages
...fig. 1, &c. ; but geometrically, that only is a figure, which has either superficial or solid content. **XV. A circle is a plane figure contained by one line,...And this point is called the centre of the circle.** A circle is the superficies or space enclosed by its circumference. 14. A great circle is that plane... | |
| Robert Potts - 1845
...called a right angle ; and the straight line which stands on the other is called a perpendicular to **it. XI. An obtuse angle is that which is greater than...And this point is called the centre of the circle.** XVII. A diameter of a circle is a straight line drawn through the centre, and terminated both ways... | |
| Robert Simson - Geometry - 1845 - 199 pages
...called a perpendicular to it. XI. An obtuse angle is that which is greater than a right angle. XII. **XIII. " A term or boundary is the extremity of any...And this point is called the centre of the circle.** XVII. A diameter of a circle is a straight line drawn through the centre, and terminated both ways... | |
| 1845
...figure is that which is enclosed by one or more boundaries. 14. A circle is a plain figure bounded **by one line, which is called the circumference, and...all straight lines drawn from a certain point within** it to the circumference are equal to one another; 15. And this point is called the centre. 16. The... | |
| James Thomson - Geometry - 1845 - 358 pages
...rhomboid is a parallelogram trhich has not its adjacent sides equal, nor its angles right angles. 30. **A circle is a plane figure contained by one line,...which is called the circumference* and is such that** R all straight lines drawn from a certain point within the figure to the circumference are equal to... | |
| Euclides - 1846
...which is greater than a right angle. xn. An acute angle is that which is less than a right angle. xin. **A term or boundary is the extremity of any thing....And this point is called the centre of the circle.** xvn. A diameter of a circle is a straight line drawn through the centre, and terminated both ways by... | |
| Geometry - 1846
...any thing. XIV. A figure is that which is enclosed by one or more boundaries. XV. Acircle is aplane **figure contained by one line, which is called the...And this point is called the centre of the circle.** XVII. A diameter of a circle is a straight line drawn through the centre, and terminated both way s... | |
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