Elements of Geometry: Being Chiefly a Selection from Playfair's GeometryA. Walker, 1829 - 186 σελίδες |
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Σελίδα 3
... divided by a third number without a remainder . 7. Between any two finite quantities of the same kind there subsists a certain relation in respect of magnitude , which is call- ed their ratio . 8. When we observe two quantities , one of ...
... divided by a third number without a remainder . 7. Between any two finite quantities of the same kind there subsists a certain relation in respect of magnitude , which is call- ed their ratio . 8. When we observe two quantities , one of ...
Σελίδα 14
... divided by any quantity , and also the third and fourth , the resulting quantities will be proportional ; or if the first and third be mul- tiplied or divided by any quantity , and also the second and fourth , the resulting quantities ...
... divided by any quantity , and also the third and fourth , the resulting quantities will be proportional ; or if the first and third be mul- tiplied or divided by any quantity , and also the second and fourth , the resulting quantities ...
Σελίδα 30
... divided into four , eight , sixteen , & c . equal parts . ED . PROPOSITION X. PROBLEM . To bisect a given finite straight line ; that is , to di- vide it into two equal parts . Let AB be the given straight line ; it is required to ...
... divided into four , eight , sixteen , & c . equal parts . ED . PROPOSITION X. PROBLEM . To bisect a given finite straight line ; that is , to di- vide it into two equal parts . Let AB be the given straight line ; it is required to ...
Σελίδα 31
... divided into two equal parts in the point D. D B Cor . If a straight line bisect the vertical angle of an equila- teral or an isosceles triangle , it will also bisect the base at right angles . For the triangles ACD , BCD are equal in ...
... divided into two equal parts in the point D. D B Cor . If a straight line bisect the vertical angle of an equila- teral or an isosceles triangle , it will also bisect the base at right angles . For the triangles ACD , BCD are equal in ...
Σελίδα 56
... divided into as many triangles as it has sides , by drawing lines from a point F within the figure to each of its angles ; and the three angles of each triangle are together equal to two right angles ( Prop . 32 ) , therefore all the ...
... divided into as many triangles as it has sides , by drawing lines from a point F within the figure to each of its angles ; and the three angles of each triangle are together equal to two right angles ( Prop . 32 ) , therefore all the ...
Άλλες εκδόσεις - Προβολή όλων
Elements of Geometry: Being Chiefly a Selection from Playfair's Geometry Formerly Chairman Department of Immunology John Playfair,John Playfair Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2016 |
Elements of Geometry: Being Chiefly a Selection From Playfair's Geometry John Playfair Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2023 |
Elements of Geometry: Being Chiefly a Selection From Playfair's Geometry John Playfair Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2023 |
Συχνά εμφανιζόμενοι όροι και φράσεις
ABC is equal ABCD alternate angles angle ABC angle ACB angle BAC angles AGH angles equal base ABC bases and altitudes bisect centre chord circumference cone Consequently cylinder demonstrations described diagonals diameter divided draw equal angles equal arches equal bases equal circles equal to AC equiangular Euclid's Euclid's Elements exterior angle fore four quantities four right angles geometry given point given straight line gles greater Hence homologous sides intersect KLMN Let ABC meet opposite angles opposite side paral parallel lines parallel to CD parallelogram parallelopipeds perp perpendicular plane polygon prism Prop pyramid Q. E. D. COR Q. E. D. PROPOSITION radius rectangle contained right angled triangle Scholium segments semicircle side AC similar similar triangles solid square straight line &c subtended tangent THEOREM triangle ABC vertex wherefore
Δημοφιλή αποσπάσματα
Σελίδα 36 - Any two sides of a triangle are together greater than the third side.
Σελίδα 80 - If a straight line be divided into any two parts, the square of the whole line is equal to the squares of the two parts, together with twice the rectangle contained by the parts.
Σελίδα 42 - To draw a straight line through a given point parallel to a given straight line. Let A be the given point, and BC the given straight line...
Σελίδα 30 - To bisect a given finite straight line, that is, to divide it into two equal parts. Let AB be the given straight line : it is required to divide it intotwo equal parts.
Σελίδα 20 - LET it be granted that a straight line may be drawn from any one point to any other point.
Σελίδα 38 - Problem. At a given point in a given straight line to make a rectilineal angle equal to a given rectilineal angle.
Σελίδα 113 - Wherefore also the angle BAD is equal to the angle CAD : Therefore the angle BAC is cut into two equal angles by the straight line AD.
Σελίδα 24 - DE ; the point B shall coincide with the point E, because AB is equal to DE; and AB coinciding with DE, AC shall coincide...
Σελίδα 36 - The greater angle of every triangle is subtended by the greater side, or has the greater side opposite to it.