Elements of Geometry and Trigonometry |
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Page 6
... PLANE TRIGONOMETRY . Plane Trigonometry Defined , .... Functions of the Arc , Table of Natural Sines ,. Table of Logarithmic Sines , Use of the Table , Solution of Right - angled Triangles , ... Solution of Oblique - angled Triangles ...
... PLANE TRIGONOMETRY . Plane Trigonometry Defined , .... Functions of the Arc , Table of Natural Sines ,. Table of Logarithmic Sines , Use of the Table , Solution of Right - angled Triangles , ... Solution of Oblique - angled Triangles ...
Page 13
... up of straight lines , not lying in the same direction , is called a broken line . 7. A SURFACE is that which has length and breadth without thickness . Surfaces are divided into two classes , plane and curved BOOK I Definitions, 1325.
... up of straight lines , not lying in the same direction , is called a broken line . 7. A SURFACE is that which has length and breadth without thickness . Surfaces are divided into two classes , plane and curved BOOK I Definitions, 1325.
Page 14
... 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 surface . 9. A CURVED SURFACE is a surface which is neither a plane nor composed of planes . 10. A PLANE ANGLE is ...
... 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 surface . 9. A CURVED SURFACE is a surface which is neither a plane nor composed of planes . 10. A PLANE ANGLE is ...
Page 15
... plane and can- not meet , how far soever , either way , both may be produced . They then have the same direction . 17. A PLANE FIGURE is a portion of a plane bounded by lines , either straight or curved . 18. A POLYGON is a plane figure ...
... plane and can- not meet , how far soever , either way , both may be produced . They then have the same direction . 17. A PLANE FIGURE is a portion of a plane bounded by lines , either straight or curved . 18. A POLYGON is a plane figure ...
Page 59
... plane figure , bounded by a curved line , every point of which is equally distant from a point within , called the centre . The bounding line is called the cir cumference . D 2. A RADIUS is a straight line drawn from the centre to any ...
... plane figure , bounded by a curved line , every point of which is equally distant from a point within , called the centre . The bounding line is called the cir cumference . D 2. A RADIUS is a straight line drawn from the centre to any ...
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Common terms and phrases
ABCD ACē adjacent angles altitude angle ACB apothem Applying logarithms base and altitude bisect centre chord circle circumference circumscribed coincide cone consequently convex surface corresponding cosec cosine Cotang cylinder denote diagonals diameter distance divided draw drawn edges equally distant feet find the area Formula frustum given angle given line given point greater hence homologous hypothenuse included angle interior angles intersection less Let ABC log sin logarithm lower base mantissa mean proportional measured by half middle point number of sides opposite parallel parallelogram parallelopipedon perimeter perpendicular plane MN polyedral angle polyedron prism PROBLEM PROPOSITION proved pyramid quadrant radii radius rectangle regular polygons right angles right-angled triangle Scholium secant segment side BC similar sine slant height sphere spherical polygon spherical triangle square Tang tangent THEOREM triangle ABC triangular prisms triedral angle upper base vertex vertices whence