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

### Inni boken

Resultat 1-5 av 58

Side

In conformity with the usual practice , the base - line is always represented by the

letters xy , and the style of lettering uniformly indicates whether a point , line , & c .

, is in space , in the

In conformity with the usual practice , the base - line is always represented by the

letters xy , and the style of lettering uniformly indicates whether a point , line , & c .

, is in space , in the

**vertical plane**, or in the horizontal . In order to make the ... Side 2

The direction of a straight line may be horizontal ,

horizontal line , as its name implies , is perfectly level , like the natural horizon

when seen from the midst of the ocean . Ex . ABB 6 . A

upright ...

The direction of a straight line may be horizontal ,

**vertical**, or oblique . 5 . Ahorizontal line , as its name implies , is perfectly level , like the natural horizon

when seen from the midst of the ocean . Ex . ABB 6 . A

**vertical**line is perfectlyupright ...

Side 3

A straight line is said to be perpendicular to another straight line when it stands

on it in such a manner that the adjacent angles are equal to each other . Ex . ABв

NOTE . — It follows that a perpendicular line is not necessarily a

A straight line is said to be perpendicular to another straight line when it stands

on it in such a manner that the adjacent angles are equal to each other . Ex . ABв

NOTE . — It follows that a perpendicular line is not necessarily a

**vertical**line . 11 . Side 22

It is also called the apex , or the

generally its lowest side . Ex . ABNOTE . — Both in an isosceles triangle and in a

right - angled triangle , the position of the base is changed . 12 . The altitude of a

...

It is also called the apex , or the

**vertical**angle . 11 . The base of a triangle isgenerally its lowest side . Ex . ABNOTE . — Both in an isosceles triangle and in a

right - angled triangle , the position of the base is changed . 12 . The altitude of a

...

Side 29

To construct an isosceles triangle on a given base AB , and having a given

the sides of the angle in D and E , and join DE . 2 . At points A and B , make

angles ...

To construct an isosceles triangle on a given base AB , and having a given

**vertical**angle C . 1 . From the angular point C as centre , and with any radius , cutthe sides of the angle in D and E , and join DE . 2 . At points A and B , make

angles ...

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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.