Elements of Geometry and TrigonometryA. S. Barnes and Company, 1838 - 269 σελίδες |
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Αποτελέσματα 1 - 5 από τα 59.
Σελίδα 2
... Straight Line - of the Conic Sections of the Line and Plane in Space - also , the dis- cussion of the General Equation of the second degree , and of surfaces of the second order . DAVIES ' DESCRIPTIVE GEOMETRY - With its ap- plication ...
... Straight Line - of the Conic Sections of the Line and Plane in Space - also , the dis- cussion of the General Equation of the second degree , and of surfaces of the second order . DAVIES ' DESCRIPTIVE GEOMETRY - With its ap- plication ...
Σελίδα 9
... line is length without breadth , or thickness . The extremities of a line are called points : a point , there- fore , has neither length , breadth , nor thickness , but position only . 3. A straight line is the shortest distance from ...
... line is length without breadth , or thickness . The extremities of a line are called points : a point , there- fore , has neither length , breadth , nor thickness , but position only . 3. A straight line is the shortest distance from ...
Σελίδα 10
Adrien Marie Legendre Charles Davies. 9. When two straight lines , AB , AC , meet each other , their inclination or ... line AB meets another straight line CD , so as to make the adjacent angles BAC , BAD , equal to each other , each of ...
Adrien Marie Legendre Charles Davies. 9. When two straight lines , AB , AC , meet each other , their inclination or ... line AB meets another straight line CD , so as to make the adjacent angles BAC , BAD , equal to each other , each of ...
Σελίδα 13
... line AB , which expresses the distance between the points A and B. The expression A × ( B + C — D ) represents the ... straight line can be drawn . 12. Through the same point , only one straight line can be drawn which shall be parallel ...
... line AB , which expresses the distance between the points A and B. The expression A × ( B + C — D ) represents the ... straight line can be drawn . 12. Through the same point , only one straight line can be drawn which shall be parallel ...
Σελίδα 14
Adrien Marie Legendre Charles Davies. PROPOSITION I. THEOREM . If one straight line meet another straight line , the sum of the two adjacent angles will be equal to two right angles . Let the straight line DC meet the straight line AB at ...
Adrien Marie Legendre Charles Davies. PROPOSITION I. THEOREM . If one straight line meet another straight line , the sum of the two adjacent angles will be equal to two right angles . Let the straight line DC meet the straight line AB at ...
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Συχνά εμφανιζόμενοι όροι και φράσεις
adjacent altitude angle ACB angle BAC ar.-comp base multiplied bisect Book VII centre chord circ circumference circumscribed common cone consequently convex surface Cosine Cotang cylinder diagonal diameter dicular distance divided draw drawn equal angles equally distant equations equivalent feet figure find the area formed four right angles frustum given angle given line gles greater homologous sides hypothenuse inscribed circle inscribed polygon intersection less Let ABC logarithm number of sides opposite parallel parallelogram parallelopipedon pendicular perimeter perpen perpendicular plane MN polyedron polygon ABCDE PROBLEM proportional PROPOSITION pyramid quadrant quadrilateral quantities radii radius ratio rectangle regular polygon right angled triangle S-ABCDE Scholium secant segment similar sine slant height solid angle solid described sphere spherical polygon spherical triangle square described straight line tang tangent THEOREM triangle ABC triangular prism vertex
Δημοφιλή αποσπάσματα
Σελίδα 241 - In every plane triangle, the sum of two sides is to their difference as the tangent of half the sum of the angles opposite those sides is to the tangent of half their difference.
Σελίδα 19 - 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 232 - ... the logarithm of a fraction is equal to the logarithm of the numerator minus the logarithm of the denominator.
Σελίδα 168 - The radius of a sphere is a straight line drawn from the centre to any point of the surface ; the diameter or axis is a line passing through this centre, and terminated on both sides by the surface.
Σελίδα 18 - America, but know that we are alive, that two and two make four, and that the sum of any two sides of a triangle is greater than the third side.
Σελίδα 169 - The convex surface of a cylinder is equal to the circumference of its base multiplied by its altitude, Fig.
Σελίδα 20 - In an isosceles triangle the angles opposite the equal sides are equal.
Σελίδα 86 - 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 225 - B) = cos A cos B — sin A sin B, (6a) cos (A — B) = cos A cos B + sin A sin B...
Σελίδα 168 - CIRCLE is a plane figure bounded by a curved line, all the points of which are equally distant from a point within called the centre; as the figure ADB E.