A graduated course of problems in practical plane and solid geometry |
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Resultat 6-10 av 86
Side 12
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 any two points , E and F in the line AB , and
with E ...
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 any two points , E and F in the line AB , and
with E ...
Side 13
To draw a line parallel to a given line AB , through a given point C . A D Ε Β 1 .
Take any point D in the given line AB towards A as centre ; and from . D , with
radius DC , describe an arc cutting AB in E . 2 . From C as centre , with the same
...
To draw a line parallel to a given line AB , through a given point C . A D Ε Β 1 .
Take any point D in the given line AB towards A as centre ; and from . D , with
radius DC , describe an arc cutting AB in E . 2 . From C as centre , with the same
...
Side 14
James Martin (of the Wedgwood inst, Burslem.) Problem 11 . To draw a line from
a given point D , outside a given line AB , making with the given line , an angle
equal to a given angle C . 1 . From the point D draw a line DE parallel to AB ( Pr .
9 ) ...
James Martin (of the Wedgwood inst, Burslem.) Problem 11 . To draw a line from
a given point D , outside a given line AB , making with the given line , an angle
equal to a given angle C . 1 . From the point D draw a line DE parallel to AB ( Pr .
9 ) ...
Side 15
Draw a line through K and L , the points of bisection . This line , if produced , will
bisect the angle made by the produced given lines ÁB , CD . Problem 13 . To
draw straight lines from any two given points A and B , outside a given straight
line ...
Draw a line through K and L , the points of bisection . This line , if produced , will
bisect the angle made by the produced given lines ÁB , CD . Problem 13 . To
draw straight lines from any two given points A and B , outside a given straight
line ...
Side 16
Produce the bisecting line to meet CD in F . C F 3 . Join AF and BF , which will be
the two required lines . Problem 15 . To divide a given line AB into any number of
equal parts ( say in this case five ) . ཤ་་སསམ་པ་ 1 . Draw a line AC at ...
Produce the bisecting line to meet CD in F . C F 3 . Join AF and BF , which will be
the two required lines . Problem 15 . To divide a given line AB into any number of
equal parts ( say in this case five ) . ཤ་་སསམ་པ་ 1 . Draw a line AC at ...
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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
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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.