Elements of Geometry and Trigonometry |
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Page 229
... logarithms of the sines , cosines , tangents , cotangents , & c . for each degree and minute of the quadrant , calculated to given radius . This radius is 10,000,000,000 , and consequently its logarithm is 10 . XXX . Let us glance for a ...
... logarithms of the sines , cosines , tangents , cotangents , & c . for each degree and minute of the quadrant , calculated to given radius . This radius is 10,000,000,000 , and consequently its logarithm is 10 . XXX . Let us glance for a ...
Page 230
... logarithms of these numbers is placed directly opposite them , and on the same horizontal line . The characteristic of the logarithm , or the part which stands to the left of the decimal point , is always known , being 1 less than the ...
... logarithms of these numbers is placed directly opposite them , and on the same horizontal line . The characteristic of the logarithm , or the part which stands to the left of the decimal point , is always known , being 1 less than the ...
Page 231
... logarithm is obtained . To this , the characteristic of the logarithm is to be prefixed , which is always one less than the places of integer figures in the given number . Thus , the logarithm of 1122 is 3.049993 . In several of the ...
... logarithm is obtained . To this , the characteristic of the logarithm is to be prefixed , which is always one less than the places of integer figures in the given number . Thus , the logarithm of 1122 is 3.049993 . In several of the ...
Page 232
... logarithm of the first four places , and prefix a characteristic which shall be one less than the number of places including the ciphers . Take from the last column on the right of the page , marked D , the number on the same horizontal ...
... logarithm of the first four places , and prefix a characteristic which shall be one less than the number of places including the ciphers . Take from the last column on the right of the page , marked D , the number on the same horizontal ...
Page 233
... logarithm of .0412 , is 2.614897 . PROBLEM . To find from the table , a number answering to a given logarithm . XXXII Search , in the column of logarithms , for the decimal part of the given logarithm , and if it be exactly found , set ...
... logarithm of .0412 , is 2.614897 . PROBLEM . To find from the table , a number answering to a given logarithm . XXXII Search , in the column of logarithms , for the decimal part of the given logarithm , and if it be exactly found , set ...
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Common terms and phrases
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 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 Prop proportional PROPOSITION pyramid quadrant quadrilateral quantities radii radius ratio rectangle regular polygon right angled triangle S-ABCDE Scholium secant segment side BC 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
Popular passages
Page 18 - If two triangles have two sides of the one equal to two sides of the...
Page 232 - ... the logarithm of a fraction is equal to the logarithm of the numerator minus the logarithm of the denominator.
Page 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.
Page 31 - Hence, the interior angles plus four right angles, is equal to twice as many right angles as the polygon...
Page 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.
Page 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.
Page 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'.
Page 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.
Page 287 - How many square feet are there in the convex surface of the frustum of a square pyramid, whose slant height is 10 feet, each side of the lower base 3 feet 4 inches, and each side of the upper base 2 feet 2 inches ? Ans.
Page 64 - To inscribe a circle in a given triangle. Let ABC be the given triangle. Bisect the angles A and B by the lines AO and BO, meeting at the point 0.