A graduated course of problems in practical plane and solid geometry |
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Resultat 1-5 av 24
Side 1
Ex . ABA The ends of lines are points , and when lines cut each other they are
said to intersect , and the point where they cross each other is called the point of
intersection . Ex . ANOTE . - Lines are of two kinds — viz . , straight or right lines ...
Ex . ABA The ends of lines are points , and when lines cut each other they are
said to intersect , and the point where they cross each other is called the point of
intersection . Ex . ANOTE . - Lines are of two kinds — viz . , straight or right lines ...
Side 7
From point D as centre , with any radius , describe arc FG ; and from E as centre ,
with the same radius , intersect the arc FG in the point H . 3 . Draw the straight
line HC , and it will be perpendicular the given straight line AB . NOTE 1 .
From point D as centre , with any radius , describe arc FG ; and from E as centre ,
with the same radius , intersect the arc FG in the point H . 3 . Draw the straight
line HC , and it will be perpendicular the given straight line AB . NOTE 1 .
Side 10
From point D as centre , with any radius , describe the arc FG ; and from point E
as centre , with the same radius , intersect the arc FG in the point H . 3 . Draw the
straight line AH , and it will bisect the given angle BAC . Problem 5 . To trisect a ...
From point D as centre , with any radius , describe the arc FG ; and from point E
as centre , with the same radius , intersect the arc FG in the point H . 3 . Draw the
straight line AH , and it will bisect the given angle BAC . Problem 5 . To trisect a ...
Side 45
The point of intersection , A , is the centre of the given circle . Problem 46 . To
describe a circle which shall pass through three given points A , B , and C . - B - 1
. Join AB , and bisect it by the perpendicular DE ( Pr . 1 . ) 2 . Join BC , and bisect
it ...
The point of intersection , A , is the centre of the given circle . Problem 46 . To
describe a circle which shall pass through three given points A , B , and C . - B - 1
. Join AB , and bisect it by the perpendicular DE ( Pr . 1 . ) 2 . Join BC , and bisect
it ...
Side 65
Bisect the two sides 2 A , AB , by lines CD , DE , and from centre D , their point of
intersection , and radius DA , describe the circumscribing circle . 5 . Mark off , on
the circumference , the divisions 2 E , EF , equal to AB . Join 2 E , EF , FB , and ...
Bisect the two sides 2 A , AB , by lines CD , DE , and from centre D , their point of
intersection , and radius DA , describe the circumscribing circle . 5 . Mark off , on
the circumference , the divisions 2 E , EF , equal to AB . Join 2 E , EF , FB , and ...
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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 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.