A graduated course of problems in practical plane and solid geometry |
Inni boken
Resultat 1-5 av 82
Side viii
... draw parallel lines having any given inclination to the sides of the drawing - board or to the base line of the ... lines F B on paper . Set - squares are of two kinds , e.g. , we have ( 1 ) the set- square of 45 ° ; having a right ...
... draw parallel lines having any given inclination to the sides of the drawing - board or to the base line of the ... lines F B on paper . Set - squares are of two kinds , e.g. , we have ( 1 ) the set- square of 45 ° ; having a right ...
Side 11
... Draw the straight lines BF and BG , and the given right angle ABC will be trisected , that is , divided into three equal angles . NOTE . It is only the right angle which ( strictly speaking ) can be trisected by a plane geometrical ...
... Draw the straight lines BF and BG , and the given right angle ABC will be trisected , that is , divided into three equal angles . NOTE . It is only the right angle which ( strictly speaking ) can be trisected by a plane geometrical ...
Side 12
... drawing lines to B , we obtain an angle of 20 ° . Bisect that , and we obtain an angle of 10 ° . Again , if angle FBC be trisected , by drawing lines to B , we might obtain an angle of 5 ° . Problem 8 . To draw a line parallel to a given ...
... drawing lines to B , we obtain an angle of 20 ° . Bisect that , and we obtain an angle of 10 ° . Again , if angle FBC be trisected , by drawing lines to B , we might obtain an angle of 5 ° . Problem 8 . To draw a line parallel to a given ...
Side 14
... draw a line from a given point D , outside a given line AB , making with the given line , an angle equal to a given ... lines , it makes the alternate angles equal to one another , " hence angle EDF is equal to angle DFB . Problem 12 . 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 ... lines , it makes the alternate angles equal to one another , " hence angle EDF is equal to angle DFB . Problem 12 . To ...
Side 15
... Draw a line through K and I , 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 , out- side a given ...
... Draw a line through K and I , 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 , out- side a given ...
Vanlige uttrykk og setninger
altitude angles to xy Atlas axis base BC Pr Bisect the angle bound in cloth circumference cone construct a triangle cube curve cylinder decagon describe a circle describe an arc describe the arc diameter BC distance divide draw a line draw a tangent draw lines edge ellipse equal circles equal in area equilateral triangle given circle given line given point given square ABCD given straight line given triangle ABC heptagon horizontal plane hyperbola inclined inscribe intersection isosceles triangle Join line BC line CD line of bisection lines parallel Maps mean proportional meeting number of equal octahedron parallel to xy parallelogram pentagon perpendicular to xy Philips plan and elevation PLANE GEOMETRY plane of projection point F points of division prism Problem projectors pyramid radii radius rectangle rectilineal figure regular polygon represent required circle rhombus right angles semicircle SOLID GEOMETRY square pyramid trapezium vertical plane
Populære avsnitt
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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.