A Treatise on Mensuration for the Use of SchoolsCommissioners of national education, 1837 - 262 sider |
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Side 7
... Chord of an arc is a straight line joining its extre- mities , and is less than the diameter ; T S is the chord of the arc T H S , or of the arc T A B S. 37. A Segment of a circle is that part of the circle con- tained between the chord ...
... Chord of an arc is a straight line joining its extre- mities , and is less than the diameter ; T S is the chord of the arc T H S , or of the arc T A B S. 37. A Segment of a circle is that part of the circle con- tained between the chord ...
Side 13
... chords , marked cho . on the scale ; and with this chord of 60 degrees as radius , and the centre A , describe an arc xy ; take from the line of chords 40 de MA in adeno . me or Jemp . grees , which set off from n to mó from A draw a ...
... chords , marked cho . on the scale ; and with this chord of 60 degrees as radius , and the centre A , describe an arc xy ; take from the line of chords 40 de MA in adeno . me or Jemp . grees , which set off from n to mó from A draw a ...
Side 14
... chord of 60 degrees , as radius , describe the semi - circle yanB ; set off the chord of 90 degrees from B ton , and the remain- ing 30 degrees from n to x ; join o x ; and the angle B o x will contain 120 degrees ; or subtract 120 from ...
... chord of 60 degrees , as radius , describe the semi - circle yanB ; set off the chord of 90 degrees from B ton , and the remain- ing 30 degrees from n to x ; join o x ; and the angle B o x will contain 120 degrees ; or subtract 120 from ...
Side 15
... chords A C , CB ; from the points A , C , B , as centres with any radius greater than half the lines , describe four arcs cutting inrx , and y v , A draw rx and y v , and produce them till they meet in O , which will be the centre . Х B ...
... chords A C , CB ; from the points A , C , B , as centres with any radius greater than half the lines , describe four arcs cutting inrx , and y v , A draw rx and y v , and produce them till they meet in O , which will be the centre . Х B ...
Side 20
... chord A B into four equal parts ; and set off one of these parts from B to D ; then join D C , and it will be equal to the length of A half the given arc nearly . * Or thus : From the extremity of the arc A B , whose length is required ...
... chord A B into four equal parts ; and set off one of these parts from B to D ; then join D C , and it will be equal to the length of A half the given arc nearly . * Or thus : From the extremity of the arc A B , whose length is required ...
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A Treatise on Mensuration for the Use of Schools Commissioners of National Education in Ireland Uten tilgangsbegrensning - 1837 |
Vanlige uttrykk og setninger
12 feet 20 feet 20 inches 9 inches abscissa acres altitude Appendix Area Seg base cask centre circular circular segment circumference circumscribed circle conjugate contained cube cubic feet cubic inches cylinder cylindroid deduct Demonstration depth dimensions distance divide elliptical equal in area feet 6 inches feet 9 figure find the area find the content find the solidity foot frustum give the area given half hyperbola imperial gallons inches broad last product line A B measure middle diameter multiply the sum nonagon ordinate parallel perches perpendicular perpendicular height piece of timber prism PROBLEM VIII product will give pyramid quarter girt quotient radius remainder required its solidity required the area required the solidity rhombus right angles roof RULE sector segment slant height SLIDING RULE solid content solid feet specific gravity sphere spheroid square pyramid square root superficial content surface thickness trapezium triangle versed sine vessel zone
Populære avsnitt
Side 245 - All the interior angles of any rectilineal figure, together with four right angles, are equal to twice as many right angles as the figure has sides.
Side 42 - From eight times the chord of half the arc, subtract the chord of the whole arc, and divide the remainder by 3, and the quotient will be the length of the arc, nearly.
Side 185 - ... the breadth, the remainder shall be esteemed the just length of the keel to find the tonnage ; and the breadth shall be taken from the outside of the outside plank in the broadest place in the ship, be it either above or below the main wales...
Side 162 - PAINTERS' WORK. PAINTERS' work is computed in square yards. Every part is measured where the colour lies ; and the measuring line is forced into all the mouldings and corners. Windows are done at so much a piece. And it is usual to allow double measure for carved mouldings, &c.
Side 50 - BAC is cut off from the given circle ABC containing an angle equal to the given angle D : Which was to be done. PROP. XXXV. THEOR. If two straight lines within a circle cut one another, the rectangle contained by the segments of one of them is equal to the rectangle contained by the segments of the other.
Side 3 - The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; and each degree into 60 equal parts, called minutes ; and each minute into 60 equal parts, called seconds ; and these into thirds, etc.
Side 6 - The diameter of a circle is a straight line passing through the center, and terminated, both ways, by the circumference.
Side 95 - Rule 2. From three times the diameter of the sphere subtract twice the height of the segment; multiply this remainder by the square of the height and the product by 0.5236.
Side 133 - Rule. Set 12 on B to the breadth in inches on A ; then against the length in feet on B, is the content on A> in feet and fractional parts.
Side 49 - Find also the area of the triangle, formed by the chord of the segment and the two radii of the sector. Then...