Plane and Solid Geometry: To which is Added Plane and Spherical Trigonometry and Mensuration : Accompanied with All the Necessary Logarithmic and Trigonometric TablesD. Appleton, 1860 - 443 σελίδες |
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Σελίδα 6
... radius . Hence , all radii of the same circle are equal . B F с E D A line passing through the centre and ter- minating in both directions by the circumference , is called a diameter . All diameters of the same circle are equal , since ...
... radius . Hence , all radii of the same circle are equal . B F с E D A line passing through the centre and ter- minating in both directions by the circumference , is called a diameter . All diameters of the same circle are equal , since ...
Σελίδα 40
... radius . Hence , all radii of the same circle are equal . A line passing through the centre and ter- minating in both directions by the circumfer- ence , is called a diameter . Hence , all diam- eters of the same circle are equal , each ...
... radius . Hence , all radii of the same circle are equal . A line passing through the centre and ter- minating in both directions by the circumfer- ence , is called a diameter . Hence , all diam- eters of the same circle are equal , each ...
Σελίδα 43
... radius drawn bisecting a chord is perpendicular to it , and bisects the subtended arc . A radius drawn bisecting an arc , will also bisect its chord perpendicularly . A line drawn bisecting a chord and its subtended arc , will pass ...
... radius drawn bisecting a chord is perpendicular to it , and bisects the subtended arc . A radius drawn bisecting an arc , will also bisect its chord perpendicularly . A line drawn bisecting a chord and its subtended arc , will pass ...
Σελίδα 44
... radius at its extremity , is tangent to the circumference . A F E ♡ If ED is drawn perpendicular to the radius CA , at its extremity , it will be tan- gent to the circumference ; that is , it will have only the point A in common with ...
... radius at its extremity , is tangent to the circumference . A F E ♡ If ED is drawn perpendicular to the radius CA , at its extremity , it will be tan- gent to the circumference ; that is , it will have only the point A in common with ...
Σελίδα 45
... radius EF to the point of contact , and it will be per- pendicular to the tangent ( T. V. , C. I. ) , and consequently perpendicular to its parallel CD . Hence the arc GF = arc KF ( T. IV . ) . A с Thirdly . When both parallels are tan ...
... radius EF to the point of contact , and it will be per- pendicular to the tangent ( T. V. , C. I. ) , and consequently perpendicular to its parallel CD . Hence the arc GF = arc KF ( T. IV . ) . A с Thirdly . When both parallels are tan ...
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Συχνά εμφανιζόμενοι όροι και φράσεις
a+b+c ABCD altitude angles equal apothem base bisecting centre chord circle circumference circumscribed circle circumscribed polygon cone consequently corresponding cosec Cosine Cotang cubic cylinder decimal denote diameter dicular distance divided draw drawn equally distant equation exterior angles feet figure frustum given angle given line gives greater half hence hypotenuse inches included angle inscribed circle intersection logarithm measure middle point multiplied number of sides opposite parallel parallelogram parallelopipedon pendicular perimeter perpen perpendicular plane MN polyedral angle polyedron prism PROBLEM proportion pyramid quadrant quadrilateral radii radius ratio rectangle regular polygon respectively equal right angles right-angled triangle Scholium secant similar similar triangles Sine slant height solid sphere spherical triangle square straight line subtract suppose surface Tang Tangent THEOREM three sides triangle ABC volume
Δημοφιλή αποσπάσματα
Σελίδα 113 - CUBIC MEASURE 1728 cubic inches = 1 cubic foot 27 cubic feet = 1 cubic yard...
Σελίδα 31 - If the opposite sides of a quadrilateral are equal, the figure is a parallelogram.
Σελίδα 112 - ALSO THE AREA OF THE TRIANGLE FORMED BY THE CHORD OF THE SEGMENT AND THE RADII OF THE SECTOR. THEN...
Σελίδα 33 - If two triangles have the three sides of the one equal to the three sides of the other, each to each, the triangles are congruent.
Σελίδα 80 - The areas of two triangles which have an angle of the one equal to an angle of the other are to each other as the products of the sides including the equal angles. A D A' Hyp. In triangles ABC and A'B'C', To prove AABC A A'B'C' A'B' x A'C ' Proof. Draw the altitudes BD and B'D'.
Σελίδα 139 - If a straight line is perpendicular to each of two straight lines at their point of intersection, it is perpendicular to the plane of those lines.
Σελίδα 15 - The sum of all the angles of a polygon is equal to twice as many right angles as the polygon has sides, less two.
Σελίδα 174 - The radius of a sphere is a straight line, drawn from the centre to any point of the...
Σελίδα 107 - ... similar figures are to each other as the squares of their homologous sides.
Σελίδα 180 - Every section of a sphere, made by a plane, is a circle.