Popular Mathematics: Being the First Elements of Arithmetic, Algebra, and Geometry, in Their Relations and UsesOrr and Smith, 1836 - 496 σελίδες |
Αναζήτηση στο βιβλίο
Αποτελέσματα 1 - 5 από τα 72.
Σελίδα 175
... lines , straight lines and crooked or curved lines , and the latter may have single or double curvatures : thus , a road which makes a sweep upon perfectly level ground , 176 STRAIGHT LINES . is a familiar instance of a POINT . - LINE .
... lines , straight lines and crooked or curved lines , and the latter may have single or double curvatures : thus , a road which makes a sweep upon perfectly level ground , 176 STRAIGHT LINES . is a familiar instance of a POINT . - LINE .
Σελίδα 176
... STRAIGHT LINES . is a familiar instance of a curve of single curvature , and a road which makes a sweep across a hill or a valley , is a familiar instance of a curve of ... straight line to be continued to any additional length . We may also.
... STRAIGHT LINES . is a familiar instance of a curve of single curvature , and a road which makes a sweep across a hill or a valley , is a familiar instance of a curve of ... straight line to be continued to any additional length . We may also.
Σελίδα 177
... straight line touches a plane in two points , it must touch it in every point , so far as both extend ; and if two straight lines are drawn across each other , a plane will touch all the four crosses , or branches formed by the crossing ...
... straight line touches a plane in two points , it must touch it in every point , so far as both extend ; and if two straight lines are drawn across each other , a plane will touch all the four crosses , or branches formed by the crossing ...
Σελίδα 178
... line extends in one direction in space , a surface in two directions , and a ... straight lines have only one quality , namely , length , they can bear only ... straight line can vary , or in which one straight line can be different from ...
... line extends in one direction in space , a surface in two directions , and a ... straight lines have only one quality , namely , length , they can bear only ... straight line can vary , or in which one straight line can be different from ...
Σελίδα 179
... straight lines having the same direc- tion ? This is the part of the case in which technical geometry has usually broken down , in the hands even of the ablest of its professors , and therefore it is very trying for popular illustra ...
... straight lines having the same direc- tion ? This is the part of the case in which technical geometry has usually broken down , in the hands even of the ablest of its professors , and therefore it is very trying for popular illustra ...
Άλλες εκδόσεις - Προβολή όλων
Popular Mathematics: Being the First Elements of Arithmetic, Algebra, and ... Robert Mudie Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2017 |
Συχνά εμφανιζόμενοι όροι και φράσεις
adjacent angles Algebra angular space answering apply bisects breadth called centre circle circumference co-efficients compound quantity consequently considered consists contain cube root decimal point denominator diameter difference direction divide dividend division divisor drawn equi-multiples Euclid's Elements evident exactly equal exponent expressed factors follows four fraction geometrical geometrical series greater hypotenuse inclination instance integer number interior angles kind least common multiple length less letters logarithm magnitude mathematical means measure meet metical multiplicand multiplier natural numbers necessary number of figures obtained operation opposite parallel parallelogram performed perpendicular plane position principle proportion quan quotient radius ratio reciprocal rectangle relation remaining right angles round a point salient angle scale of numbers second term segment sides simple solid space round square root stand straight line subtraction surface taken third tion triangle truth whole
Δημοφιλή αποσπάσματα
Σελίδα 396 - Upon a given straight line to describe a segment of a circle, which shall contain aa angle equal to a given rectilineal angle.
Σελίδα 473 - Prove it. 6.If a straight line be bisected and produced to any point, the rectangle contained by the whole line thus produced, and the part of it produced together with the -square on half the line bisected, is equal to the square on the straight line which is made up of the half and the part produced.
Σελίδα 416 - If two triangles have two sides, and the included angle of the one equal to two sides and the included angle of the other, each to each, the two triangles are equal in all respects.
Σελίδα 380 - If two angles of a triangle are equal, the sides opposite those angles are equal. AA . . A Given the triangle ABC, in which angle B equals angle C. To prove that AB = A C. Proof. 1. Construct the AA'B'C' congruent to A ABC, by making B'C' = BC, Zfi' = ZB, and Z C
Σελίδα 494 - IF from any point without a circle two straight lines be drawn, one of which cuts the circle, and the other touches it ; the rectangle contained by the whole line which cuts the circle, and the part of it without the circle, shall be equal to the square of the line which touches it.
Σελίδα 138 - Generalising this operation, we have the common rule for finding the greatest common measure of any two numbers : — divide the greater by the less, and the divisor by the remainder continually till nothing remains, and the last divisor is the greatest common measure.
Σελίδα 259 - Angles, taken together, is equal to Twice as many Right Angles, wanting four, as the Figure has Sides.
Σελίδα 489 - But let one of them BD pass through the centre, and cut the other AC, which does not pass through the centre, at right angles, in the...
Σελίδα 102 - COR. 1. Hence, because AD is the sum, and AC the difference of ' the lines AB and BC, four times the rectangle contained by any two lines, together with the square of their difference, is equal to the square ' of the sum of the lines." " COR. 2. From the demonstration it is manifest, that since the square ' of CD is quadruple of the square of CB, the square of any line is qua' druple of the square of half that line.