Practical plane and solid geometry, Bind 14 |
Fra bogen
Resultater 1-5 af 11
Side 8
... polygon upon a given side as A B. Produce the given side A B to C , making B C equal to A B. From B as centre with B A as radius draw a semicircle A D C. Divide the circumference of the semicircle into the same number of parts as the ...
... polygon upon a given side as A B. Produce the given side A B to C , making B C equal to A B. From B as centre with B A as radius draw a semicircle A D C. Divide the circumference of the semicircle into the same number of parts as the ...
Side
... polygon upon a given side as A B. Produce the given side A B to C , making B C equal to A B. From B as centre with B A as radius draw a semicircle A D C. Divide the circumference of the semicircle into the same number of parts as the ...
... polygon upon a given side as A B. Produce the given side A B to C , making B C equal to A B. From B as centre with B A as radius draw a semicircle A D C. Divide the circumference of the semicircle into the same number of parts as the ...
Side
... polygon . Draw the circumscribing circle from E as a centre , and E A as radius . Take the length of one side and step it round the circum- ference . Join these points , completing the polygon . The position of the other sides may also ...
... polygon . Draw the circumscribing circle from E as a centre , and E A as radius . Take the length of one side and step it round the circum- ference . Join these points , completing the polygon . The position of the other sides may also ...
Side 18
... polygon . In this case , an error often occurs by adding one half A B , instead of one and a half times A B. This pro- cess is , in fact , finding a mean proportional between the side or diameter of the given figure , and a line ...
... polygon . In this case , an error often occurs by adding one half A B , instead of one and a half times A B. This pro- cess is , in fact , finding a mean proportional between the side or diameter of the given figure , and a line ...
Side 15
... polygon equal to a given triangle . Let A B C be any given triangle . Divide one side of the triangle ( as A B ) into the same number of equal parts as there are to be sides to the polygon - in this case , six . Draw a line A E ...
... polygon equal to a given triangle . Let A B C be any given triangle . Divide one side of the triangle ( as A B ) into the same number of equal parts as there are to be sides to the polygon - in this case , six . Draw a line A E ...
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Almindelige termer og sætninger
A B C D arcs cutting base A B Bisect centre line circumference cube curved line cut A B cut the circle cut the former cut the side cycloid cylinder diagonal diameter distance divide divisions draw a circle draw a line draw a semicircle draw an arc draw arcs draw lines parallel draw parallels draw perpendiculars draw the envelope draw the plan edge ellipse equal in area equally inclined equilateral triangle frustum given angle given circle given figure given line given point given rectangle given triangle icosahedron intersection Isometrical Projection Join these points length Let A B C lines drawn lines to cut mark number of equal octahedron parabola parallel to A B parallelogram perpendicular to A B Perspective Projection plan and elevation polygon previous figure Projection radii radius ratio right angles shadow shown solid sphere straight line tetrahedron Vernier width
Populære passager
Side 14 - AB into two parts, so that the rectangle contained by the whole line and one of the parts, shall be equal to the square on the other part.
Side 15 - ... is termed a diameter. An arc of a circle is any part of the circumference. A sector of a circle is the space enclosed by two radii and the intercepted arc. When the radii are at right angles, the space is called a quadrant as to one-fourth of a circle. Half a circle is called a semicircle. A chord is a straight line joining the extremities of an arc, as a b.
Side 7 - AQ, at right angles to each other; in which place the sides AB, AC, of the given squares ; join BC ; then a square described on BC will be equal to the sum of the two squares described on AB and AC.
Side 14 - If in a circle two straight lines cut one another, the rectangle contained by the segments of the one is equal to the rectangle contained by the segments of the other.
Side 15 - A segment is any part of a circle bounded by an arc, and its chord, as E, F, G. 50. A semicircle is half the circle, or segment cut off by a diameter.
Side 7 - Art. 361, and divide the arc, ij, into the same number of equal parts as there are to be treads ; through the points of division, 1, 2, 3, &c., and from the wall-string to the front-string, draw lines tending to the centre, o ; then these lines will represent the face of each riser, and determine the form and width of the steps. Allow the necessary projection for the nosing beyond ae...
Side 15 - A Square is a four-sided figure, having all its sides equal, and all its angles right angles; as H.
Side 16 - Thus, to draw a line through a given point parallel to a given line...
Side 16 - The three interior angles of any triangle are together equal to two right angles.
Side 19 - P be the point at which a tangent is to be drawn. Draw the radius OP to the given point of tangency, and produce it any convenient distance beyond the circle. Erect a perpendicular to this line at P, as MT ; then is MT a tangent to the circle (172). FIG.