Geometrical Drawing: With Notes and Examples ...University Press, 1900 |
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Resultat 1-5 av 33
Side 10
... diameters at right angles , and take one of the quadrants , or quarter circles . If we divide this quadrant into any number of equal parts and join the points of division to the centre we divide a right angle into the same number of ...
... diameters at right angles , and take one of the quadrants , or quarter circles . If we divide this quadrant into any number of equal parts and join the points of division to the centre we divide a right angle into the same number of ...
Side 12
... diameter bisects a chord it cuts it at right angles ( fig . 2 ) . A straight line AB which bisects a chord CD at right angles passes through the centre , and also bisects the arc CBD in B. To find the centre of any circle bisect any two ...
... diameter bisects a chord it cuts it at right angles ( fig . 2 ) . A straight line AB which bisects a chord CD at right angles passes through the centre , and also bisects the arc CBD in B. To find the centre of any circle bisect any two ...
Side 16
... BAC = DEF . ( 30 ) To draw a tangent to a given circle at a given point B on it . Draw the diameter AB , and CD at right angles to it at B. CD is the tangent required . 25 . 27 . 26 . X B B A 16 PLANE GEOMETRICAL DRAWING .
... BAC = DEF . ( 30 ) To draw a tangent to a given circle at a given point B on it . Draw the diameter AB , and CD at right angles to it at B. CD is the tangent required . 25 . 27 . 26 . X B B A 16 PLANE GEOMETRICAL DRAWING .
Side 18
... diameter [ that is bisect OA at M and draw a circle with centre M and distance MA ] cutting the given circle at B and C. AB and AC are tangents to the given circle . [ If one tangent only is required draw AB or AC . ] ( 32 ) To describe ...
... diameter [ that is bisect OA at M and draw a circle with centre M and distance MA ] cutting the given circle at B and C. AB and AC are tangents to the given circle . [ If one tangent only is required draw AB or AC . ] ( 32 ) To describe ...
Side 26
... diameter AB , and OF from the centre O , perpen- dicular to it . Bisect OB at E. With centre E make an arc FH with distance EF , then FH is the length of the side of a regular pentagon in the circle . Measure it , and step it off round ...
... diameter AB , and OF from the centre O , perpen- dicular to it . Bisect OB at E. With centre E make an arc FH with distance EF , then FH is the length of the side of a regular pentagon in the circle . Measure it , and step it off round ...
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ABC having given ABCD angular points arc to meet arcs to intersect Bisect the angle centre of similitude chord circle centre circle of given circular arcs circumscribing circle construct a triangle curve cycloid describe a circle diameter distance equal divide draw a circle draw a tangent draw parallels draw perpendiculars drawn elevation ellipse equal in area equal sides equilateral triangle exterior angle feet find the centre furlongs given angle given base given circle given point given radius given straight line given triangle heptagon hypotenuse inches isosceles triangle Join AC Let ABC mean proportional measure miles number of equal number of sides obtained parallelogram plane points of division produced protractor radii rectangle rectilineal figure regular pentagon regular polygon rhombus right angles right-angled triangle segment semicircle shew shewn similar figures spiral straight line AC tangent triangle ABC vertex vertical angle zero point