Treatise on Geometry and Trigonometry: For Colleges, Schools and Private Students. Written for the Mathematical Course of Joseph Ray, M.D.Sargent, Wilson & Hinkle, 1868 - 420 σελίδες |
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Σελίδα vii
... REGULAR POLYEDRONS , · CHAPTER XI . SOLIDS OF REVOLUTION . CONES , CYLINDERS , 151 159 164 166 172 • 177 · 185 190 . 195 • 209 213 222 226 232 239 241 247 249 SPHERES , SPHERICAL AREAS , SPHERICAL VOLUMES , MENSURATION , CONTENTS . vii.
... REGULAR POLYEDRONS , · CHAPTER XI . SOLIDS OF REVOLUTION . CONES , CYLINDERS , 151 159 164 166 172 • 177 · 185 190 . 195 • 209 213 222 226 232 239 241 247 249 SPHERES , SPHERICAL AREAS , SPHERICAL VOLUMES , MENSURATION , CONTENTS . vii.
Σελίδα viii
... SPHERICAL TRIGONOMETRY . SPHERICAL ARCS AND ANGLES , 314 RIGHT ANGLED SPHERICAL TRIANGLES , 324 SOLUTION OF SPHERICAL TRIANGLES , . 329 CHAPTER XIV . LOGARITHMS . USE OF COMMON LOGARITHMS , 334 TABLES . LOGARITHMIC AND TRIGONOMETRIC ...
... SPHERICAL TRIGONOMETRY . SPHERICAL ARCS AND ANGLES , 314 RIGHT ANGLED SPHERICAL TRIANGLES , 324 SOLUTION OF SPHERICAL TRIANGLES , . 329 CHAPTER XIV . LOGARITHMS . USE OF COMMON LOGARITHMS , 334 TABLES . LOGARITHMIC AND TRIGONOMETRIC ...
Σελίδα 250
... radius , and diame- ter of the sphere are the same as those of the generating circle . The spherical surface is described by the circumference . 738. Corollary . - Every point on the surface of. 250 ELEMENTS OF GEOMETRY . SPHERES, •
... radius , and diame- ter of the sphere are the same as those of the generating circle . The spherical surface is described by the circumference . 738. Corollary . - Every point on the surface of. 250 ELEMENTS OF GEOMETRY . SPHERES, •
Σελίδα 251
... spherical surface is curved in every direction . Unlike those surfaces which are gen- erated by the motion of a straight line , every possible section of it is a curve . SECANT PLANES . 744. Theorem . Every section of a sphere made by a ...
... spherical surface is curved in every direction . Unlike those surfaces which are gen- erated by the motion of a straight line , every possible section of it is a curve . SECANT PLANES . 744. Theorem . Every section of a sphere made by a ...
Σελίδα 252
... the axis of any circle is a diame- ter of the sphere . The two points where the axis of a circle pierces the spherical surface , are the poles of the circle . Thus , N and S are the poles of both the sections 252 ELEMENTS OF GEOMETRY.
... the axis of any circle is a diame- ter of the sphere . The two points where the axis of a circle pierces the spherical surface , are the poles of the circle . Thus , N and S are the poles of both the sections 252 ELEMENTS OF GEOMETRY.
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Συχνά εμφανιζόμενοι όροι και φράσεις
adjacent angles altitude angles equal apothem axis base bisect chord circle circumference circumscribed coincide cone Corollary Corollary.-The cosine Cotang curved surface cylinder demonstrated diagonals diameter dicular diedral angle distance divided draw equally distant equivalent EXERCISES faces figure formula four right angles frustum functions Geometry given angle given line given point given straight line given triangle greater Hence homologous homologous lines hypotenuse included angle inscribed intersection isosceles join less let fall mantissa measured number of sides opposite sides parallel lines parallelogram parallelopiped perimeter perpen perpendicular plane polyedral polyedron prism Problem.-Given pyramid quadrilateral radius ratio regular polygon respectively equal right angled triangle secant similar similarly arranged slant hight sphere spherical excess spherical polygon spherical triangle square student subtracting symmetrical Tang tangent tetraedrons theorem Theorem.-The triangles are equal triedral trirectangular vertex vertices volume
Δημοφιλή αποσπάσματα
Σελίδα 183 - If two triangles have two sides of the one respectively equal to two sides of the other, and the contained angles supplemental, the two triangles are equal.
Σελίδα 238 - The volume of any parallelopiped is equal to the product of its base by its altitude.
Σελίδα 72 - Problem. — To draw a line through a given point parallel to a given line.
Σελίδα 141 - The square described on the hypothenuse of a right-angled triangle is equivalent to the sum of the squares described on the other two sides.
Σελίδα 91 - Conversely, if two angles of a triangle are equal, the sides opposite them are also equal, and the triangle is isosceles.
Σελίδα 173 - The areas of two circles are to each other as the squares of their radii ; or, as the squares of their diameters. 502. Corollary. — When the radius is unity, the area is expressed by -. 503. Theorem — The area of a sector is measured by half the product of its arc by its radius.
Σελίδα 240 - Corollary — The volume of any pyramid is equal to one-third of the product of its base by its altitude. For any pyramid...
Σελίδα 260 - The sum of the angles of a spherical triangle is greater than two and less than six right angles ; that is, greater than 180° and less than 540°. (gr). If A'B'C' is the polar triangle of ABC...
Σελίδα 137 - The squa/re described on the difference of two straight lines is equivalent to the sum of the squares described on the two lines, diminished by twice the rectangle contained by the lines.
Σελίδα 274 - The areas of the surfaces of two spheres are to each other as the squares of their radii, or as the squares of their diameters.