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" The inclination of a straight line to a plane is the acute angle contained by that straight line, and another drawn from the point in which the first line meets the plane, to the point in which... "
Solid and Spherical Geometry and Conic Sections: Being a Treatise on the ... - Side 1
av A. Bell - 1837 - 164 sider
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The Elements of Euclid: The Errors, by which Theon, Or Others, Have Long Ago ...

Robert Simson - 1806 - 518 sider
...angles to a plane, when it makes right angles with every straight line meeting it in that plane. IV. A plane is perpendicular to a plane when the straight...the two planes are perpendicular to the other plane. V. The inclination of a straight line to a plane is the acute angle contained by that straight line...
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Elements of Geometry: Containing the First Six Books of Euclid, with a ...

John Playfair - 1806 - 311 sider
...II. plane, when it makes right angles with every straight line which it meets in the plane, y. II. ' A plane is perpendicular to a plane, when the straight lines drawn in one of the planes perpendicular to the common section of the two planes are perpendicular to the other plane. I III....
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Pantologia. A new (cabinet) cyclopædia, by J.M. Good, O. Gregory ..., Volum 5

John Mason Good - 1813
...angles with every straight line meeting it in that plane. 4. A plane is perpendicular to a plane, »hen the straight lines drawn in one of the planes perpendicularly to the common section of the two planes, arc perpendicular to the other plane. 5. The inclination of a straight line to a plane is the acute...
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The Elements of Euclid: Viz. the First Six Books, Together with the Eleventh ...

Euclides - 1816 - 528 sider
...angles, to a plane, when it makes right angles with every straight line meeting it in that plane. IV. A plane is perpendicular to a plane, when the straight...the two planes are perpendicular to the other plane. V. The inclination of a straight line to a plane is the acute angle contained by that straight line,...
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Pantologia. A new (cabinet) cyclopædia, by J.M. Good, O. Gregory ..., Volum 5

John Mason Good - 1819
...straight line meeting it in that plane. 4. A plane is perpendicular to a plane, when the straiglit lines drawn in one of the planes perpendicularly to...two planes, are perpendicular to the other plane. 5. The inclination of a straight line to a plane is the acute angle contained by that straight line,...
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Elements of Geometry: Containing the First Six Books of Euclid: With a ...

John Playfair - 1819 - 317 sider
...angles to a plane, when it makes right angles with every straight line which it meets in that plane. II. A plane is perpendicular to a plane, when the straight lines drawn in one of the planes perpendicular to the common section of the two planes, are perpendicular to the other plane. III. The...
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Elements of Geometry: Containing the First Six Books of Euclid, with a ...

John Playfair - 1819 - 333 sider
...plane is perpendicular to a plane, when the straight lines drawn in one of the planes perpendicular to the common section of the two planes, are perpendicular to the other plane. III. The inclination of a straight line to a plane is the acute angle contained by that straight line,...
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Universal Technological Dictionary: Or, Familiar Explanations of ..., Volum 2

George Crabb - 1823
...when it makes right angles with every straight line meeting it in that plane, as AB in fig. 36. — A plane is perpendicular to a plane when the straight...of the two planes are perpendicular to the other, as ABC, fig. 37. — The inclination of a straight line to a plane is the acute angle contained by...
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A Popular Course of Pure and Mixed Mathematics ...: With Tables of ...

Peter Nicholson - 1825 - 372 sider
...angles to a plane, when it make! right angles with every straight line meeting it in that plane. IV. A plane is perpendicular to a plane, when the straight...two planes, are perpendicular to the other plane. V. The inclination of a straight line to a ¡.hue is the acute angle contained by that straight line,...
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Elements of Geometry: Containing the First Six Books of Euclid, with a ...

Euclid, John Playfair - 1826 - 320 sider
...makes right angles with every straight line whieh it meets in that plane. n. A plane is perpendieular to a plane, when the straight lines drawn in one of the planes perpendieular to the eommon seetion of the two planes, are perpendieular to the other plane. III. The...
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