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

### Inni boken

Resultat 1-5 av 16

Side

... a parallel straight line . 7 . The Rolling Parallel Ruler . This instrument consists

of a ruler , AB , generally divided into inches and tenths ; near the

placed two rollers turning on an axis parallel viii INTRODUCTORY SECTION .

... a parallel straight line . 7 . The Rolling Parallel Ruler . This instrument consists

of a ruler , AB , generally divided into inches and tenths ; near the

**extremities**areplaced two rollers turning on an axis parallel viii INTRODUCTORY SECTION .

Side

that the ruler is capable of moving at right angles to the direction of the edge AB .

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

**extremities**are placed two rollers turning on an axis parallel to the edge AB , sothat the ruler is capable of moving at right angles to the direction of the edge AB .

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

Side

The

should be pierced as little as possible by the point which constitutes the centre of

the circle . For the bow - pencil compasses , “ engineers ' pencils ” are used . 3 .

The

**extremities**of the compasses should also be sharp - pointed , but the papershould be pierced as little as possible by the point which constitutes the centre of

the circle . For the bow - pencil compasses , “ engineers ' pencils ” are used . 3 .

Side 4

A radius ( plural radii ) is a straight line drawn from the centre to the

circumference . Ex . AB17 . A diameter is a straight line drawn through the centre ,

and terminated at both

is half a ...

A radius ( plural radii ) is a straight line drawn from the centre to the

circumference . Ex . AB17 . A diameter is a straight line drawn through the centre ,

and terminated at both

**extremities**by the circumference . Ex . AB 18 . A semicircleis half a ...

Side 24

From the

) . 2 . From A as centre with any radius , describe a semicircle cutting CAD in C

and D . 3 . From C and D with the same radius , cut the semicircle in G and H . 4 .

From the

**extremities**of the line AB , draw CAD and EBF perpendicular to it ( Pr . 2) . 2 . From A as centre with any radius , describe a semicircle cutting CAD in C

and D . 3 . From C and D with the same radius , cut the semicircle in G and H . 4 .

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### Vanlige uttrykk og setninger

altitude arc cutting Atlas axis base bound called centre circumference cloth complete cone construct contained curve cutting cylinder describe a circle describe an arc describe arcs determine diagonal distance divide division draw a line draw lines drawn edge elevation ellipse equal equal in area equilateral triangle extremities face figure four given circle given line given point given triangle ABC half height hexagon horizontal plane inches inclined inscribe intersection isosceles triangle Join length lines parallel Maps mark meeting 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 seen semicircle sides similar solid square tangent 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.