A course of practical geometry for mechanics1846 |
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Αποτελέσματα 1 - 5 από τα 22.
Σελίδα 5
... length - extension of surface and extension of solidity ; and the forms of objects , superficial and solid , can be so represented by its aid , as to convey the most correct ideas of their localities , bulk , and proportions ; and upon ...
... length - extension of surface and extension of solidity ; and the forms of objects , superficial and solid , can be so represented by its aid , as to convey the most correct ideas of their localities , bulk , and proportions ; and upon ...
Σελίδα 6
... length , in order that the student may know precisely how to use his instruments ; after which it is presumed that he will be able to understand the construction of others with greater ease ; but should he meet with difficulty , it may ...
... length , in order that the student may know precisely how to use his instruments ; after which it is presumed that he will be able to understand the construction of others with greater ease ; but should he meet with difficulty , it may ...
Σελίδα 7
... length without breadth . ” Note . Such definitions as are marked with a star are copied from the first book of Euclid's Elements . 1 * . A POINT is that which hath no parts , or which hath no magnitude . A point has also been defined ...
... length without breadth . ” Note . Such definitions as are marked with a star are copied from the first book of Euclid's Elements . 1 * . A POINT is that which hath no parts , or which hath no magnitude . A point has also been defined ...
Σελίδα 9
... is that which hath only length and breadth . The diagrams to illustrate definitions 10 and 28 are super- ficies , but those of definitions 19 and 23 are not . 13 * . The extremities of a superficies are lines PRACTICAL GEOMETRY . 9.
... is that which hath only length and breadth . The diagrams to illustrate definitions 10 and 28 are super- ficies , but those of definitions 19 and 23 are not . 13 * . The extremities of a superficies are lines PRACTICAL GEOMETRY . 9.
Σελίδα 11
... length of the legs of a rectilineal angle does not affect its quantity as an angle , for whether the legs be an inch or a mile in length , the angle remains unaltered , the measure of an angle , whose legs are right lines , being the ...
... length of the legs of a rectilineal angle does not affect its quantity as an angle , for whether the legs be an inch or a mile in length , the angle remains unaltered , the measure of an angle , whose legs are right lines , being the ...
Άλλες εκδόσεις - Προβολή όλων
Συχνά εμφανιζόμενοι όροι και φράσεις
altitude angle to contain arc or angle arithmetic Arithmetical mean base called centre chords shall form circumference decagon describe a circle describe an arc describe arcs cutting describe the arc diagonals diameter dodecagon Draw a line Draw chords Draw the line ellipse equilateral triangle erect a perpendicular Euclid Euclid's Elements EXAMPLE extremities generatrix given angle given circle given figure given line given number given point given triangle inches long inscribe a regular isosceles triangle Join length Let A B line 2 inches lines A B number of degrees number of equal parallel parallel ruler parallelogram pentagon perpendicular plane point of intersection PROBLEM protractor radii radius ratio rectangle regular heptagon regular pentagon regular polygon rhombus right angles right-angled triangle scale scalene triangle sector segment square equal straight line Superficies tangent triangle ACB triangle required vertex vertical angle Vide Def Vide Prob WANOSTROCHT'S
Δημοφιλή αποσπάσματα
Σελίδα 11 - 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 10 - 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 12 - 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 13 - A diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference.
Σελίδα 10 - When several angles are at one point B, any one ' of them is expressed by three letters, of which the letter ' that is at the vertex of the angle, that is, at the point in ' which the straight lines that contain the angle meet one ' another, is put between the other two letters, and one of ' these two is somewhere upon one of those 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...
Σελίδα 17 - Parallel straight lines are such as are in the same plane, and which being produced ever so far both ways, do not meet.
Σελίδα 16 - A rhomboid is that which has its opposite sides equal to one another, but all its sides are not equal, nor its angles right angles.
Σελίδα 10 - A plane angle is the inclination of two lines to one another in a plane, which meet together, but are not in the same direction.
Σελίδα 16 - A Parallelogram is a four-sided figure, of which the opposite sides are parallel ; and the diameter is the straight line joining two of its opposite angles.
Σελίδα 13 - A Segment is any part of a circle bounded by an arc and its chord. 51. A Semicircle is half the circle, or a segment cut off by a diameter. The half circumference is sometimes called the Semicircle. 52. A...