A course of practical geometry for mechanics1856 |
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Σελίδα
... equal to them for flexibility and durability , and for producing a fine as well as a smooth stroke ; and I can recommend them with confidence to the Principals of Schools , being fully convinced that they can obtain none of so good a ...
... equal to them for flexibility and durability , and for producing a fine as well as a smooth stroke ; and I can recommend them with confidence to the Principals of Schools , being fully convinced that they can obtain none of so good a ...
Σελίδα
... equal , re - entering , salient .. 13 , 21-24 , 27 , 33 , 47-49 , 76 Lines , straight , curved , mixed , etc .... CONTENTS . exterior , interior ... in circles , in segments to make , various ... Antecedent and consequent . Arcs ...
... equal , re - entering , salient .. 13 , 21-24 , 27 , 33 , 47-49 , 76 Lines , straight , curved , mixed , etc .... CONTENTS . exterior , interior ... in circles , in segments to make , various ... Antecedent and consequent . Arcs ...
Σελίδα
... , single , similar , equal . Trisect , trisections Vertex , vertical 13 , 53 , 67 8 , 9 , 21 , 22 , 34 , 36 , 54-71 13 , 38 3 , 6 , 11 , 12 , 39 , 40 , 60 PRACTICAL GEOMETRY . INTRODUCTION . THE word Geometry is composed viii CONTENTS .
... , single , similar , equal . Trisect , trisections Vertex , vertical 13 , 53 , 67 8 , 9 , 21 , 22 , 34 , 36 , 54-71 13 , 38 3 , 6 , 11 , 12 , 39 , 40 , 60 PRACTICAL GEOMETRY . INTRODUCTION . THE word Geometry is composed viii CONTENTS .
Σελίδα 6
... equal to one another , each of the angles is called a right angle ; and the straight line which . stands on the other is called a perpendicular to it . Beginners are apt to suppose that a perpendicular must be a vertical , or plumb line ...
... equal to one another , each of the angles is called a right angle ; and the straight line which . stands on the other is called a perpendicular to it . Beginners are apt to suppose that a perpendicular must be a vertical , or plumb line ...
Σελίδα 7
... equal parts , called degrees ; an angle which is formed by two radii will therefore contain a certain number of those parts , and is said to be of so many degrees . A right angle thus contains 90 degrees , and half a right angle 45 ...
... equal parts , called degrees ; an angle which is formed by two radii will therefore contain a certain number of those parts , and is said to be of so many degrees . A right angle thus contains 90 degrees , and half a right angle 45 ...
Άλλες εκδόσεις - Προβολή όλων
Συχνά εμφανιζόμενοι όροι και φράσεις
13 inches A B C A C B Aldersgate Street altitude angle equal arc or angle Arithmetical mean Bisect Book centre circumference contain an angle cutting A B describe a circle describe a regular describe an arc diagonal scale distance Divide a line Draw a line Draw chords Draw the line ellipse equilateral triangle Euclid Euclid's Elements EXAMPLES French FRENCH LANGUAGE Geometry given angle given circle given line given parallelogram given point given square given straight line given triangle Harmonical mean heptagon inch side inches long inches radius inches respectively inscribe isosceles triangle Join Let A B line 2 inches line A B number of degrees number of equal parallel parallel ruler perpendicular plain scale plane Prob PROBLEM produced Prop protractor pupil radii rectangle rectilineal figure regular pentagon regular polygon Relfe rhombus right angles right line right-angled triangle scale of chords segment square equal triangle required vertex vertical angle
Δημοφιλή αποσπάσματα
Σελίδα 8 - When a straight line standing on another straight line makes the adjacent angles equal to one another, each of the angles is called a right angle ; and the straight line which stands on the other is called a perpendicular to it.
Σελίδα 8 - A circle is a plane figure contained by one line, which is called the circumference, and is such that all straight lines drawn from a certain point within the figure to the circumference, are equal to one another.
Σελίδα 7 - A plane rectilineal angle is the inclination of two straight lines to one another, which meet together, but are not in the same straight line.
Σελίδα 68 - In any right-angled triangle, the square which is described upon the side subtending the right angle, is equal to the squares described upon the sides which contain the right angle.
Σελίδα 14 - An angle in a segment is the angle contained by two straight lines drawn from any point in the circumference of the segment to the extremities of the straight . line which is the base of the segment.
Σελίδα 9 - A diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference.
Σελίδα 11 - Parallel straight lines are such as are in the same plane, and which being produced ever so far both ways, do not meet.
Σελίδα 7 - ... straight lines, and the other upon the other line : Thus the angle which is contained by the straight lines, AB, CB, is named the angle ABC, or CBA ; that which is contained by AB...