## A graduated course of problems in practical plane and solid geometry |

### Inni boken

Resultat 1-5 av 33

Side

By the aid of this instrument , any number of lines may be drawn parallel to a

given line , and at any given

instrument is used for measuring angles , and for laying down angles on paper of

...

By the aid of this instrument , any number of lines may be drawn parallel to a

given line , and at any given

**distance**from each other . 8 . The Protractor . — Thisinstrument is used for measuring angles , and for laying down angles on paper of

...

Side 1

... other is called the point of intersection . Ex . ANOTE . - Lines are of two kinds —

viz . , straight or right lines , and curved lines . 3 . A straight line is the shortest

ANGLES.

... other is called the point of intersection . Ex . ANOTE . - Lines are of two kinds —

viz . , straight or right lines , and curved lines . 3 . A straight line is the shortest

**distance**between PRACTICAL PLANE GEOMETRY SECTION LINES ANDANGLES.

Side 2

A straight line is the shortest

produced when it is lengthened at either extremity . Ex . BC4 . A curved line is

nowhere straight . Ex . ABNote . — The direction of a straight line may be

horizontal ...

A straight line is the shortest

**distance**between two points . A line is said to beproduced when it is lengthened at either extremity . Ex . BC4 . A curved line is

nowhere straight . Ex . ABNote . — The direction of a straight line may be

horizontal ...

Side 12

Bisect that , and we obtain an angle of 10° . Again , if angle FBC be trisected , by

drawing lines to B , we might obtain an angle of 5o . Problem 8 . To draw a line

parallel to a given line AB , at a given

two ...

Bisect that , and we obtain an angle of 10° . Again , if angle FBC be trisected , by

drawing lines to B , we might obtain an angle of 5o . Problem 8 . To draw a line

parallel to a given line AB , at a given

**distance**from it , as CD . AB 1 . Take anytwo ...

Side 13

2 . From point D , with the same radius , describe the arc GH . 3 . From point G ,

and the

KDB will be equal to the given angle C . Problem 11 . To draw a line from a given

...

2 . From point D , with the same radius , describe the arc GH . 3 . From point G ,

and the

**distance**EF , cut off GK equal to EF . 4 . Draw the line DK , and the angleKDB will be equal to the given angle C . Problem 11 . To draw a line from a given

...

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### Vanlige uttrykk og setninger

altitude arc cutting Atlas axis base Bisect the angle called centre circumference cloth complete cone construct contained curve cutting cylinder describe a circle describe an arc describe arcs diagonal diameter distance divide draw a line draw lines Draw the line edge elevation ellipse equal equal in area equilateral triangle face four given circle given line given point given square ABCD given straight line given triangle ABC half height hexagon horizontal plane inches inclined inscribe intersection isosceles triangle Join length Maps mark meeting Method NOTE obtain parallel parallelogram pass pentagon perpendicular Philips plane of projection polygon prism Problem produced projection projectors pyramid radii radius rectangle rectilineal figure regular represent required circle respectively right angles scale semicircle sides similar solid straight line Take touching traces trapezium vertical plane

### Populære avsnitt

Side 295 - Philips' Preparatory Atlas, Containing Sixteen Maps, full colored. Crown quarto, in neat cover, 6d. Philips Preparatory Outline Atlas. Sixteen Maps. Crown quarto, printed on fine cream-wove paper, in neat cover, 6d. Philips Preparatory Atlas of Blank Projections. Sixteen Maps. Crown quarto, printed on fine cream-wove paper, in neat cover, 6d. Philips Elementary Atlas for Young Learners.

Side 294 - Young Student's Atlas, Comprising Thirty-six Maps of the Principal Countries of the World, printed in colors. Edited by W. Hughes, FRGS Imperial 41.0., bound in cloth, 33. 6d. Philips Atlas for Beginners, Comprising Thirty-two Maps of the Principal Countries of the World, constructed from the best authorities, and engraved in the best style. New and enlarged edition, with a valuable Consulting Index, on a new plan.

Side 193 - A cone is a solid figure described by the revolution of a right-angled triangle about one of the sides containing the right angle, which side remains fixed. If the fixed side be equal to the other side containing the right angle, the cone is called a right-angled cone ; if it be less than the other side, an obtuse-angled ; and if greater, an acute-angled cone. XIX. The axis of a cone is the fixed straight line about which the triangle revolves.

Side 123 - A straight line is said to be cut in extreme and mean ratio, when the whole is to the greater segment as the greater segment is to the less.