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according algebraic angle application assumed axis base becomes branch called centre chords circle co-efficients co-ordinates common considered constructed contains continued corresponding course curve decimal denote described determined diameter differential direction distance divided division draw drawn elements ellipse equal equation expression extremity factors figure fixed formula fraction function Geometry give given greater hence horizontal indicated infinite intersection known latitude length less limit manner means measure meridian method multiplied nature operation parallel pass perpendicular plane polygon portion positive powers principles problem projection quantity radius ratio reduced referred relation remaining represent respect result right angles roots rule scale sides sphere square straight line substitute suppose surface survey taken tangent term third tion triangle unit variable vertex vertical whole
Σελίδα 87 - A Circle is a plane figure bounded by a curved line every point of which is equally distant from a point within called the center.
Σελίδα 26 - The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; each degree into 60 equal parts, called minutes ; and each minute into 60 equal parts, called seconds.
Σελίδα 452 - Three lines are in harmonical proportion, when the first is to the third, as the difference between the first and second, is to the difference between the second and third ; and the second is called a harmonic mean between the first and third. The expression 'harmonical proportion...
Σελίδα 82 - Then multiply the second and third terms together, and divide the product by the first term: the quotient will be the fourth term, or answer.
Σελίδα 4 - This cyclopaedia of mathematical science defines, with completeness, precision, and accuracy, every technical term ; thus constituting a popular treatise on each branch and a general view of the whole subject. 50 The National Teachers
Σελίδα 460 - In any quadrilateral the sum of the squares of the four sides is equal to the sum of the squares of the diagonals, plus four times the square of the line joining the middle points of the diagonals.
Σελίδα 134 - Subtract the cube of this number from the first period, and to the remainder bring down the first figure of the next period for a dividend.
Σελίδα 451 - Four quantities are in proportion when the ratio of the first to the second is equal to the ratio of the third to the fourth.