The Elements of Geometry, Symbolically Arranged |
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Seite 4
... expressed by three letters , of which the letter that is at the vertex of the angle , that is , at the point in which the straight lines that contain the angle meet one another , is put between the other two letters , and one of these ...
... expressed by three letters , of which the letter that is at the vertex of the angle , that is , at the point in which the straight lines that contain the angle meet one another , is put between the other two letters , and one of these ...
Seite 53
... Squares and parallelograms are frequently expressed , for the sake of brevity , by the letters at their opposite angles ; and the square on any line , as BC , is represented by BC2 . Ax . 6 . being on the same base FB PROP . XXXIX . 53 333.
... Squares and parallelograms are frequently expressed , for the sake of brevity , by the letters at their opposite angles ; and the square on any line , as BC , is represented by BC2 . Ax . 6 . being on the same base FB PROP . XXXIX . 53 333.
Seite 56
... expressed by the letters AGK or EHC , which are at the opposite angles of the parallelograms which make the gnomon . ' A E D F H K C B G N.B. - The rectangle contained by any two straight lines AB , AĎ , is generally expressed by the ...
... expressed by the letters AGK or EHC , which are at the opposite angles of the parallelograms which make the gnomon . ' A E D F H K C B G N.B. - The rectangle contained by any two straight lines AB , AĎ , is generally expressed by the ...
Seite 60
... expressed is ( a + b ) 2 = a2 + 2ab + b2 . PROP . XLIV . THEOR . 5. 2 Eu . 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 ...
... expressed is ( a + b ) 2 = a2 + 2ab + b2 . PROP . XLIV . THEOR . 5. 2 Eu . 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 ...
Seite 61
... expressed is be + ( ab ) 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 contained by the whole line PROP . XLIV . XLV . 61.
... expressed is be + ( ab ) 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 contained by the whole line PROP . XLIV . XLV . 61.
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The Elements of Geometry, Symbolically Arranged Great Britain Admiralty Keine Leseprobe verfügbar - 2016 |
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ABCD AC² angle contained base base BC bisect called centre circle circumference coincides common Constr descr described diam diameter dist divided draw equal equal angles equiangular equilat expressed extremities falls figure given point given straight line gnomon greater half isosceles join less Let ABC line drawn manner mean meet oppo opposite angle opposite sides parallel parallelogram pass perpendicular plane polygon PROB prod produced Prop proportional proposition proved quantities ratio rect rectangle contained rectilineal remain right angles segments shown sides square THEOR touch triangle unequal Wherefore Нур
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Seite 58 - 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.
Seite 32 - 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...
Seite 60 - 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...
Seite 36 - 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...
Seite 61 - 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.
Seite 21 - 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.
Seite 37 - 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...
Seite 3 - 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.
Seite 77 - 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.
Seite 19 - To draw a straight line perpendicular to a given straight line of an unlimited length, from a given point without it.