The Elements of Geometry, Symbolically Arranged |
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Σελίδα 4
... angles are at one point B , any one of them is expressed by three letters , of which the letter that is at the ... equal to one another , each of the angles is called a right angle ; and the straight line which stands on the 4 GEOMETRY .
... angles are at one point B , any one of them is expressed by three letters , of which the letter that is at the ... equal to one another , each of the angles is called a right angle ; and the straight line which stands on the 4 GEOMETRY .
Σελίδα 7
... angles . XXX . Of four - sided figures , a square is that which has all its angles right angles , and all its sides equal . XXXI . An oblong is that which has all its angles right angles , but has not all its sides equal . XXXII . A ...
... angles . XXX . Of four - sided figures , a square is that which has all its angles right angles , and all its sides equal . XXXI . An oblong is that which has all its angles right angles , but has not all its sides equal . XXXII . A ...
Σελίδα 8
... equal , nor its angles right angles . XXXIV . All other four - sided figures , besides these , are called trapeziums . XXXV . Parallel straight lines are such as are in the same plane , and which being produced ever so far both ways ...
... equal , nor its angles right angles . XXXIV . All other four - sided figures , besides these , are called trapeziums . XXXV . Parallel straight lines are such as are in the same plane , and which being produced ever so far both ways ...
Σελίδα 10
... angles are equal to one another . XII . If a straight line meet two straight lines , so as to make the two interior angles on the same side of it taken together , less than two right angles , these straight lines , being continually ...
... angles are equal to one another . XII . If a straight line meet two straight lines , so as to make the two interior angles on the same side of it taken together , less than two right angles , these straight lines , being continually ...
Σελίδα 13
... angles contained by those sides equal to one another ; they shall like- wise have their bases , or third sides , equal , and the two triangles shall be equal ; and their other angles shall be equal , each to each , viz . , those to ...
... angles contained by those sides equal to one another ; they shall like- wise have their bases , or third sides , equal , and the two triangles shall be equal ; and their other angles shall be equal , each to each , viz . , those to ...
Άλλες εκδόσεις - Προβολή όλων
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.