The Elements of Geometry, Symbolically Arranged |
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Σελίδα 60
... half the whole line . Let the str . line AB be divided into two equal parts at the pt . C , and into two unequal parts at the point D ; then AD . DB + CD2 = CB2 . = A C D B L H K M E G F On CB descr . sq . CEFB , Prop.38 . 60 GEOMETRY .
... half the whole line . Let the str . line AB be divided into two equal parts at the pt . C , and into two unequal parts at the point D ; then AD . DB + CD2 = CB2 . = A C D B L H K M E G F On CB descr . sq . CEFB , Prop.38 . 60 GEOMETRY .
Σελίδα 61
... half line be a ; the proposition algebraically expressed is be + ( a - b ) 2 = a2 ; or be + ( c - a ) 2 = a2 . Cor . Prop . 43 . PROP . XLV . THEOR . 6. 2 Eu . If a straight line be bisected , and produced to E any point ; the rectangle ...
... half line be a ; the proposition algebraically expressed is be + ( a - b ) 2 = a2 ; or be + ( c - a ) 2 = a2 . Cor . Prop . 43 . PROP . XLV . THEOR . 6. 2 Eu . If a straight line be bisected , and produced to E any point ; the rectangle ...
Σελίδα 62
... square of half the line bisected , is equal to the square of the straight line which is made up of the half line and the part produced . Let the str . line AB be bisected in C , and produced to D ; then AD . DB + CB2 = CD ...
... square of half the line bisected , is equal to the square of the straight line which is made up of the half line and the part produced . Let the str . line AB be bisected in C , and produced to D ; then AD . DB + CB2 = CD ...
Σελίδα 63
Great Britain. Admiralty. Note . If the half line be a , and the part produced b , the proposition algebraically ex- pressed is ( 2a + b ) b + a2 = ( a + b ) 2 . PROP . XLVI . THEOR . 7. 2 Eu . If a straight line ... half line be a, and ...
Great Britain. Admiralty. Note . If the half line be a , and the part produced b , the proposition algebraically ex- pressed is ( 2a + b ) b + a2 = ( a + b ) 2 . PROP . XLVI . THEOR . 7. 2 Eu . If a straight line ... half line be a, and ...
Σελίδα 99
... half the sum of the two contained arcs . Let str . lines BE and CD cut each other in pt . A , within the BCFD ; then will half the sum of the arcs DE and BC be the mea- sure of the of intersection BAC . B Prop . 28 . Prop . 58 . then G ...
... half the sum of the two contained arcs . Let str . lines BE and CD cut each other in pt . A , within the BCFD ; then will half the sum of the arcs DE and BC be the mea- sure of the of intersection BAC . B Prop . 28 . Prop . 58 . then G ...
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The Elements of Geometry, Symbolically Arranged Great Britain Admiralty Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2016 |
Συχνά εμφανιζόμενοι όροι και φράσεις
2ndly ABCD AC² angle contained angle equal base BC CB² centre circle circumference coincides Constr descr diam diameter dist divided equal angles equiangular equilat exterior angle figure given point given str given straight line gnomon greater isosceles triangle join Let ABC Let str Let the str line be drawn meet number of equal oppo opposite angle opposite sides parallel parallelogram perpendicular polygon PROB prod Prop rect rectangle contained rectilineal right angles right-angled triangle semi sides equal square THEOR touch trapezium Wherefore whole fig Нур
Δημοφιλή αποσπάσματα
Σελίδα 60 - If a straight line be divided into two equal parts, and also into two unequal parts; the rectangle contained by the unequal parts, together with the square of the line between the points of section, is equal to the square of half the line.
Σελίδα 34 - If two triangles have two angles of the one equal to two angles of the other, each to each, and one side equal to one side, viz. either the sides adjacent to the equal...
Σελίδα 62 - If a straight line be bisected and produced to any point, the rectangle contained by the whole line thus produced and the part of it produced, together with the square of...
Σελίδα 38 - Wherefore, if a straight line, &c. QB D. PROPOSITION XXVIII. THEOB.—-If a straight line, falling upon two other straight lines, make the exterior angle equal to...
Σελίδα 63 - If a straight line be divided into any two parts, the squares of the whole line, and of one of the parts, are equal to twice the rectangle contained by the whole and that part, together with the square of the other part. Let the straight line AB be divided into any two parts in the point C ; the squares of AB, BC are equal to twice the rectangle AB, BC, together with the square of AC.
Σελίδα 23 - If, at a point in a straight line, two other straight lines, upon the opposite sides of it, make the adjacent angles together equal to two right angles, these two straight lines shall be in one and the same straight line.
Σελίδα 39 - IF a straight line fall upon two parallel straight lines, it makes the alternate angles equal to one another; and the exterior angle equal to the interior and opposite upon the same side; and likewise the two interior angles upon the same side together equal to two right angles...
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 : XVI.
Σελίδα 79 - If a straight line touch a circle, and from the point of contact a straight line be drawn cutting the circle, the angles which this line makes with the line touching the circle, shall be equal to the angles which are in the alternate segments of the circle.
Σελίδα 21 - To draw a straight line perpendicular to a given straight line of an unlimited length, from a given point without it.