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

### Inni boken

Side 34

A

equal . Ex . ABCDА Note . — Quadrilaterals fall into six classes , four of which are

A

**parallelogram**is a quadrilateral , of which the opposite sides are parallel andequal . Ex . ABCDА Note . — Quadrilaterals fall into six classes , four of which are

**parallelograms**— viz . , the square , the rectangle , the rhombus , and the ... Side 35

A rectangle is a

angles right angles . Ex . ÅBCDNOTE . — This kind of

termed an oblong . 5 . A rhombus is a

...

A rectangle is a

**parallelogram**which has only its opposite sides equal , but all itsangles right angles . Ex . ÅBCDNOTE . — This kind of

**parallelogram**is alsotermed an oblong . 5 . A rhombus is a

**parallelogram**which has all its sides equal...

Side 96

To inscribe a four - sided equilateral figure in any given

Draw the diagonals AD , BC , cutting each other in E . 2 . Bisect any two of the

adjacent angles at E ( Pr . 4 ) , by lines cutting the sides of the

...

To inscribe a four - sided equilateral figure in any given

**parallelogram**ABCD . 1 .Draw the diagonals AD , BC , cutting each other in E . 2 . Bisect any two of the

adjacent angles at E ( Pr . 4 ) , by lines cutting the sides of the

**parallelogram**in F...

Side 129

On AB , construct any

intercepting each other in E . 12 13 14 % 516B 2 . Draw line F } parallel to AD ( Pr

. 9 ) cutting AB in J . 3 . Draw line C } , cutting BD in 3 , and draw line 34 parallel

to ...

On AB , construct any

**parallelogram**ABCD , and draw the diagonals AC , BD ,intercepting each other in E . 12 13 14 % 516B 2 . Draw line F } parallel to AD ( Pr

. 9 ) cutting AB in J . 3 . Draw line C } , cutting BD in 3 , and draw line 34 parallel

to ...

Side 138

It can be readily seen that ABC is a half of the

a half of the

base BC , are equal , therefore the triangles are equal , as “ the halves of equal ...

It can be readily seen that ABC is a half of the

**parallelogram**EBCA , and DBC isa half of the

**parallelogram**DBCP . The**parallelograms**, standing on the samebase BC , are equal , therefore the triangles are equal , as “ the halves of equal ...

### Hva folk mener - Skriv en omtale

Vi har ikke funnet noen omtaler på noen av de vanlige stedene.

### 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.