Gradations in Euclid : books i. and ii., with an explanatory preface [&c.] by H. Green1858 |
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Página 24
... half the area of a paral- lelogram on the same or on an equal base , and between the same parallels ; and we may therefore represent the Area of the Tri- angle by taking half the area of the rectangle which has the same base and ...
... half the area of a paral- lelogram on the same or on an equal base , and between the same parallels ; and we may therefore represent the Area of the Tri- angle by taking half the area of the rectangle which has the same base and ...
Página 25
... half the circumference multiplied by the radius . The diameter and circumference of a circle are incommen- surable ; but it has been ascertained that when the diameter is 1 , the circumference is 3.1415926 & c .; and on this fact the ...
... half the circumference multiplied by the radius . The diameter and circumference of a circle are incommen- surable ; but it has been ascertained that when the diameter is 1 , the circumference is 3.1415926 & c .; and on this fact the ...
Página 28
... half - price , and the proceeds of the sale added to a new subscription of £ 20 , and if the two sums thus added be expended in the purchase of more books , and so on , year after year , the half of the value of the preceding year's ...
... half - price , and the proceeds of the sale added to a new subscription of £ 20 , and if the two sums thus added be expended in the purchase of more books , and so on , year after year , the half of the value of the preceding year's ...
Página 59
... half a rt . angle , the sides which subtend them are equal . Thus by measuring the shadow CB , we obtain the height BA . The height would also be obtained by making an observation with a quadrant of alti- tude ; thus , -walk away in a ...
... half a rt . angle , the sides which subtend them are equal . Thus by measuring the shadow CB , we obtain the height BA . The height would also be obtained by making an observation with a quadrant of alti- tude ; thus , -walk away in a ...
Página 64
... half , and EAG the other half , of △ DAE ; and halves of the same being equal , the arc DG is equal to the arc GE . 2. An isosceles triangle would serve equally well for the solution and demonstration . 3. By successive bisections an ...
... half , and EAG the other half , of △ DAE ; and halves of the same being equal , the arc DG is equal to the arc GE . 2. An isosceles triangle would serve equally well for the solution and demonstration . 3. By successive bisections an ...
Otras ediciones - Ver todas
Gradations in Euclid : books i. and ii., with an explanatory preface [&c ... Euclides Vista completa - 1870 |
Gradations in Euclid: Books I. and II., with an Explanatory Preface [&C.] by ... Euclides Sin vista previa disponible - 2016 |
Términos y frases comunes
AB² ABCD AC² adjacent angles Algebra altitude angle equal angular point Arith Arithmetic ascertain Axiom bisect centre circle circumference Concl CONS construct DEANSGATE DEMONSTRATION.-P describe diagonal diameter distance drawn equal bases equilateral Euclid Euclid's Elements extremity Geometry given line given point given rectilineal given st greater hypotenuse inch interior angles intersect isosceles triangle JOHN HEYWOOD join LADC length less line be divided lines AC magnitude measure monad opposite angles opposite sides parallel parallelogram perpendicular plane Plane Geometry polygon premiss PROB produced Prop proposition Quæs radius Recap rectangle rectangle contained rectilineal angle rectilineal figure regular polygon right angles SCHOLIUM.-1 segment sides equal straight line surface trapezium twice vertical angle Wherefore
Pasajes populares
Página 93 - 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...
Página 105 - IF a side of any triangle be produced, the exterior angle is equal to the two interior and opposite angles ; and the three interior angles of every triangle are equal to two right angles.
Página 161 - If a straight line be divided into any two parts, four times the rectangle contained by the whole line, and one of the parts, together with the square of the other part, is equal to the square of the straight line which is made up of the whole and that part.
Página 41 - A segment of a circle, is the figure contained by a straight line and the circumference which it cuts off.
Página 93 - If two triangles have two sides of the one respectively equal to two sides of the other, and the contained angles supplemental, the two triangles are equal.
Página 100 - 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...
Página 180 - 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 18 - 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 142 - If the square described upon one of the sides of a triangle, be equal to the squares described upon the other two sides of it ; the angle contained by these two sides is a right angle.
Página 44 - LET it be granted that a straight line may be drawn from any one point to any other point.