Elements of Geometry and Trigonometry |
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Page 10
... divided by B. The Exponential Sign : Thus , A3 , indicates that A is to be taken three times as a factor , or raised to the third power . The Radical Sign , ✓ 3 Thus , √A , B , indicate that the square root of A , and the cube root of ...
... divided by B. The Exponential Sign : Thus , A3 , indicates that A is to be taken three times as a factor , or raised to the third power . The Radical Sign , ✓ 3 Thus , √A , B , indicate that the square root of A , and the cube root of ...
Page 13
... divided into two classes , straight and curved . 4. A STRAIGHT LINE is one which does not change its direction at any point . 5. A CURVED LINE is one which changes its direction at every point . The word line , alone , is used for ...
... divided into two classes , straight and curved . 4. A STRAIGHT LINE is one which does not change its direction at any point . 5. A CURVED LINE is one which changes its direction at every point . The word line , alone , is used for ...
Page 14
Adrien Marie Legendre Charles Davies. Surfaces are divided into two classes , plane and curved surfaces . 8. A PLANE is a surface , such , that if any two of its points be joined by a straight line , that line will lie wholly in the ...
Adrien Marie Legendre Charles Davies. Surfaces are divided into two classes , plane and curved surfaces . 8. A PLANE is a surface , such , that if any two of its points be joined by a straight line , that line will lie wholly in the ...
Page 17
... divided into two species : trapezoids and parallelograms . 27. A TRAPEZOID is a quadrilateral which has only two of its sides parallel . 28. A PARALLELOGRAM is a quadrilateral which has its opposite sides parallel , two and two . There ...
... divided into two species : trapezoids and parallelograms . 27. A TRAPEZOID is a quadrilateral which has only two of its sides parallel . 28. A PARALLELOGRAM is a quadrilateral which has its opposite sides parallel , two and two . There ...
Page 18
... divided by equals , the quotients will be equal . 8. The whole is greater than any of its parts . 9. The whole is equal to the sum of all its parts . 10. All right angles are equal . 11. Only one straight line can be drawn can be drawn ...
... divided by equals , the quotients will be equal . 8. The whole is greater than any of its parts . 9. The whole is equal to the sum of all its parts . 10. All right angles are equal . 11. Only one straight line can be drawn can be drawn ...
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Elements of Geometry and Trigonometry: From the Works of A. M. Legendre Adrien Marie Legendre,Charles Davies No preview available - 2016 |
Common terms and phrases
AB² ABCD AC² adjacent angles altitude angle ACB apothem Applying logarithms base and altitude centre chord circle circumference circumscribed coincide cone consequently convex surface corresponding cosec Cosine Cotang cylinder denote diameter distance divided draw drawn edges equally distant feet find the area Formula frustum given angle given line greater hence homologous hypothenuse included angle interior angles intersection less Let ABC log sin logarithm lower base mantissa mean proportional measured by half number of sides opposite parallel parallelogram parallelopipedon perimeter perpendicular plane MN polyedral angle polyedron prism PROPOSITION proved pyramid quadrant radii radius rectangle regular polygon right-angled triangle Scholium secant segment semi-circumference side BC similar Sine slant height sphere spherical angle spherical polygon spherical triangle square straight line Tang tangent THEOREM triangle ABC triangular prisms upper base vertex vertices whence
Popular passages
Page 28 - If two triangles have two sides of the one equal to two sides of the...
Page 100 - The area of a triangle is equal to half the product of its base by its altitude.
Page 99 - The area of a parallelogram is equal to the product of its base and its height: A = bx h.
Page 59 - A chord is a straight line joining the extremities of an arc.
Page 124 - If two polygons are composed of the same number of triangles, similar each to each and similarly placed, the polygons are similar.
Page 214 - A sphere is a solid bounded by a curved surface, every point of which is equally distant from a point within called the center.
Page 43 - C' (89) (90) (91) (92) (93) 112. In any plane triangle, the sum of any two sides is to their difference as the tangent of half the sum of the opposite angles is to the tangent of half their difference.
Page 52 - If the product of two quantities is equal to the product of two other quantities, two of them may be made the extremes, and the other two the means of a proportion.
Page 123 - Similar triangles are to each other as the squares of their homologous sides.
Page 182 - The upper end of the frustum of a pyramid or cone is called the upper base...