First Stage Practical Plane and Solid GeometryW.B. Clive, University Tutorial Press, 1903 - 255 σελίδες |
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Αποτελέσματα 1 - 5 από τα 94.
Σελίδα 2
... perpendicular , as those marked 1 , 2 , 3 , as well as inclined parallel lines , as 4 , 5 , 6 , a set- square is used , and it is guided either with the edge of the T - square as shown , or with the edge of the other set - square ...
... perpendicular , as those marked 1 , 2 , 3 , as well as inclined parallel lines , as 4 , 5 , 6 , a set- square is used , and it is guided either with the edge of the T - square as shown , or with the edge of the other set - square ...
Σελίδα 4
... perpendicular to it . = 40 A B Fig . 5 . Parallel lines are such that , if produced ever so far both ways , do not meet . The complement of an angle is that angle which it requires to complete a right angle : thus , the complement of 50 ...
... perpendicular to it . = 40 A B Fig . 5 . Parallel lines are such that , if produced ever so far both ways , do not meet . The complement of an angle is that angle which it requires to complete a right angle : thus , the complement of 50 ...
Σελίδα 8
... perpendicular to meet oc pro- duced in P. With centre P , radius PC , draw the arc CD . Similarly join DE , and bisect it with a perpendicular to meet PD produced in Q. With centre Q , radius QD , draw the arc DE , and so on for any ...
... perpendicular to meet oc pro- duced in P. With centre P , radius PC , draw the arc CD . Similarly join DE , and bisect it with a perpendicular to meet PD produced in Q. With centre Q , radius QD , draw the arc DE , and so on for any ...
Σελίδα 9
... perpendicular to the radius PC . PT is a tangent . ( 2 ) Join qc , and on it as diameter describe a circle , cutting the given one in A and B. Join QA , QB , the other re- quired tangents . Undoubtedly the best way to find the exact ...
... perpendicular to the radius PC . PT is a tangent . ( 2 ) Join qc , and on it as diameter describe a circle , cutting the given one in A and B. Join QA , QB , the other re- quired tangents . Undoubtedly the best way to find the exact ...
Σελίδα 11
... perpendicular meeting the arc in c . Join PC . Draw the tangent , PT , making an angle with PA twice the angle CPA . Another method is by Prob . 47 . 5. Assume any two converging lines , which do not meet on your paper , and draw a line ...
... perpendicular meeting the arc in c . Join PC . Draw the tangent , PT , making an angle with PA twice the angle CPA . Another method is by Prob . 47 . 5. Assume any two converging lines , which do not meet on your paper , and draw a line ...
Άλλες εκδόσεις - Προβολή όλων
Συχνά εμφανιζόμενοι όροι και φράσεις
ABCD altitude axis base angle bisect centre chord co-ordinate planes cone construction corners cube cut cut cylinder diagonal diagram diameter dihedral angle distance draw a line Draw the plan Draw the projections drawn edge ellipse end view equal equilateral triangle figure given angle given circle given plane given point ground line height hexagon hinge-line Hint.-See Prob horizontal plane horizontal trace hypotenuse inch inclined at 30 inclined plane intersection isometric projection line parallel locus measure meet millimetres oblique plane octahedron parallel to xy parallelogram pentagon perpendicular to xy plan and elevation plane containing plane of reference plane v'o'h planes of projection polygon position preceding problem prism projector pyramid rabatted radians radius real angle rectangle represent respectively right angles right-angled triangle scale shown side solid Solid Geometry solution square square pyramid tangent triangle ABC true length true shape vectors vertex vertical plane vertical trace
Δημοφιλή αποσπάσματα
Σελίδα 5 - A circle is a plane figure contained by one line, which is called the circumference, and is such that all straight lines drawn from a certain point within the figure to the circumference, are equal to one another.
Σελίδα 23 - IF a straight line be drawn parallel to one of the sides of a triangle, it shall cut the other sides, or those produced, proportionally; and if the sides, or the sides produced, be cut proportionally, the straight line which joins the points of section shall be parallel to the remaining side of the triangle...
Σελίδα 4 - When a straight line standing on another straight line makes the adjacent angles equal to one another, each of the angles is called a right angle; and the straight line which stands on the other is called a perpendicular to it.
Σελίδα 5 - A diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference.
Σελίδα 55 - If a parallelogram and a triangle be upon the same base, and between the same parallels; the parallelogram shall be double of the triangle.
Σελίδα 74 - If two forces, acting at a point, be represented in magnitude and direction by the two sides of a parallelogram drawn from...
Σελίδα 22 - Likewise, if the first has the same ratio to the second, which the third has to the fourth, then also any equimultiples whatever of the first and third shall have the*same ratio to the second and fourth...
Σελίδα 6 - When two radii connect together any two points in the circumference of a circle which are on exactly the opposite sides of the centre, they make a chord, which is called the diameter of the circle, and such diameter divides the circle into two equal segments, 1 which take the name of semicircles.
Σελίδα 195 - Represent by their traces : — a. Two planes at right angles to each other and to the vertical plane of projection, and one of them inclined at 40° to the horizontal plane.