The Harpur Euclid: An Edition of Euclid's ElementsRivingtons, 1890 - 515 páginas |
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Página 2
... length without breadth . 3. The extremities of a line are points . 4. A straight line is that which lies evenly between its extreme points . A straight line is sometimes spoken of as the join of its extreme points . 5. A superficies ...
... length without breadth . 3. The extremities of a line are points . 4. A straight line is that which lies evenly between its extreme points . A straight line is sometimes spoken of as the join of its extreme points . 5. A superficies ...
Página 4
... length in a straight line . 3. That a circle may be described from any centre at any distance from that centre . In practice this amounts to demanding the use of a ruler or straight - edge and a pair of compasses . Neither of these ...
... length in a straight line . 3. That a circle may be described from any centre at any distance from that centre . In practice this amounts to demanding the use of a ruler or straight - edge and a pair of compasses . Neither of these ...
Página 19
... length , otherwise there could be two triangles AFE , AF'E , on the same base AE , and on the same side of it , having AF equal to AF ' and EF equal to EF ' . PROPOSITION 8. THEOREM . If two triangles have two sides Book I. Prop . 7 . 19.
... length , otherwise there could be two triangles AFE , AF'E , on the same base AE , and on the same side of it , having AF equal to AF ' and EF equal to EF ' . PROPOSITION 8. THEOREM . If two triangles have two sides Book I. Prop . 7 . 19.
Página 28
... length , equidistant from two given points , A , B. ( Refer to Note just given . It is there pointed out that the locus of points equidistant from A and B is the perpendicular bisector of their join . Con- sequently the point required ...
... length , equidistant from two given points , A , B. ( Refer to Note just given . It is there pointed out that the locus of points equidistant from A and B is the perpendicular bisector of their join . Con- sequently the point required ...
Página 29
... length from a given point without it . Let AB be the given straight line which may be produced to any length both ways , and let C be the given point with- out it ; it is required to draw from the point C a straight liner to AB . H G D ...
... length from a given point without it . Let AB be the given straight line which may be produced to any length both ways , and let C be the given point with- out it ; it is required to draw from the point C a straight liner to AB . H G D ...
Otras ediciones - Ver todas
The Harpur Euclid: An Edition of Euclid's Elements, Revised in Accordance ... Edward Mann Langley,Euclid,W. Seys Phillips Sin vista previa disponible - 2015 |
Términos y frases comunes
bisect bisector Brocard point chord circum-circle of triangle circumference coincide common concyclic congruent cyclic quadrilateral demonstration described diagonals diameter diamr divided draw equal angles equiangr equiangular equidistant equilateral triangle equimultiples Euclid exterior angle Geometry given circle given point given ratio given st given straight line given triangle greater Hence inscribed intersect isosceles isosceles triangle Join Let ABC locus magnitude meet mid-point opposite sides parallel parallelogram pass pentagon perpendicular plane produced Prop PROPOSITION PROPOSITION 13 radical axis radius rect rectangle contained reqd rhombus right angles segment Show sides BC similar Similarly Simson's line square straight line drawn student subtended symmedian symmedian point tangent THEOREM touch triangle ABC vertex vertices
Pasajes populares
Página 21 - If two triangles have the three sides of the one equal to the three sides of the other, each to each, the triangles are congruent.
Página 369 - If two triangles have one angle of the one equal to one angle of the other and the sides about these equal angles proportional, the triangles are similar.
Página 390 - ... figures are to one another in the duplicate ratio of their homologous sides.
Página 97 - Let it be granted that a straight line may be drawn from any one point to any other point.
Página 370 - IN a right-angled triangle, if a perpendicular be drawn from the right angle to the base, the triangles on each side of it are similar to the whole triangle, and to one another.
Página 96 - 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.
Página 40 - Any two sides of a triangle are together greater than the third side.
Página 143 - Three times the sum of the squares on the sides of a triangle is equal to four times the sum of the squares of the lines joining the middle point of each side with the opposite angles.
Página 407 - Pythagoras' theorem states that the square of the length of the hypotenuse of a right-angled triangle is equal to the sum of the squares of the lengths of the other two sides.
Página 156 - 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...