 | Euclides - 1660 - 368 pages
...it be leflej it is an obtult-anglcd Conej if greater, an acute- angled Cone. XI XThe Axis of a Gone is that fix'd line about which the triangle is moved. , XX. The 17о rbeelevtntb tt : Г." — X X.The Bafe of a Cone is the cjrcje,which ц defcribcd by the tight... | |
 | Euclid, Isaac Barrow - Geometry - 1714 - 536 pages
...is a reftangled Cone : but if it be lei's, it is an obtufe-angled Cone ; if greater an acute- angled Cone. XIX. The Axis of a Cone is that fix'd line about which the triangle is moved, XX, The XX. TheBafe of a Cone is the circle, which is defcribed by the right line moved about. XXI. A Cylinder... | |
 | Euclid, Isaac Barrow - Euclid's Elements - 1732 - 436 pages
...contained! the right angle, then the Cone is a .rectangled Cone : But if it be left, it is an obtufe-angled Cone ; if greater, an acute-angled Cone. XIX. The Axis of a Cone is that fix'd line about ivhich the triangle is moved. XX. The Bafe of a Cone is the circle, which isdeIcribed by the right... | |
 | John Ward (of Chester.) - Mathematics - 1747 - 516 pages
...Reßangled Cone; " but if it be lefs, 'tis an Obtufe angled Cone; it greater, an ** Acute angled Cone. The Axis of a Cone is that fix'd Line ** about which the Triangle is mov'd : The Bafe of a Cone is the " Circle, which is defcrio'd by the Right Line mov'd about." (Defin.... | |
 | John Ward - Mathematics - 1747 - 492 pages
...; *' but if it be lefs, 'tis an Obtufe-angled Cone; if greater, art " Acute- angled Cone. The /fxis of a Cone is that fix'd Line " about which the Triangle is jnov'd : The Bafe of a Cone is the " Circle, which is defcrib'd by the Right Line mov'd about." (Defin.... | |
 | John Keill - Geometry - 1772 - 462 pages
...contains the Right Angle, then the Cone is a reEIangular Cone ; but, if it be lefs, it is an obtufe-angled Cone ; if greater, an acute-angled Cone. XIX. The Axis of a Cone is that fixed Right Line, about -which the Triangle is moved. XX. The Bafe of a Cone is the Circle defcribed... | |
 | Euclides - 1845 - 546 pages
...the cone is called a right-angled cone ; if it be less than the other side, an obtuse-angled ; and if greater, an acute-angled cone. XIX. The axis of a cone is the fixed straight line about which the triangle revolves. XX. The base of a cone is the circle described... | |
 | Euclides - 1846 - 292 pages
...containing the right angle, the cone is called a right-angled cone, if less, an obtuse-angled, and if greater, an acute-angled cone. xix. The axis of a cone is the fixed straight line about which the triangle revolves. xx. The base of a cone is the circle described... | |
 | Euclides - 1848 - 52 pages
...flie cone is called a right-angled cone ; if it be less than the other side, an obtuse-angled; and if greater, an acute-angled cone. XIX. The axis of a cone is the fixed straight line about which the triangle revolves. XX. The base of a cone is the circle described... | |
 | Euclides - 1864 - 448 pages
...angle, the cone is called a right-angled cone; if it be less than the other side, an obtuse-angled; and if greater, an acute-angled cone. XIX. The axis of a cone is the fixed straight line about which the triangle revolves. XX. The base of a cone is the circle described... | |
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... than the other side, an obtuse-angled ; and if greater, an acute-angled cone. XIX. The axis of a cone is the fixed straight line about which the triangle revolves. XX. The base of a cone is the circle described by that side containing the right angle,... 
