Elements of Geometry: Being Chiefly a Selection from Playfair's GeometryA. Walker, 1829 - 186 páginas |
Dentro del libro
Resultados 1-5 de 35
Página 10
... be proportional , the like pow ers or roots of those quantities will be proportional . If A : B :: C : D , then A " : B " :: C " : D " , n being either a whole number or a fraction . 1 Because B C A9 = = D ' B2 10 PROPORTION .
... be proportional , the like pow ers or roots of those quantities will be proportional . If A : B :: C : D , then A " : B " :: C " : D " , n being either a whole number or a fraction . 1 Because B C A9 = = D ' B2 10 PROPORTION .
Página 21
... whole is greater than its part . A. The whole is equal to all its parts taken together . ED . B. It is impossible for the same thing to have , at the same time , two qualities which are inconsistent with each other . ED . Jag jolenoid ...
... whole is greater than its part . A. The whole is equal to all its parts taken together . ED . B. It is impossible for the same thing to have , at the same time , two qualities which are inconsistent with each other . ED . Jag jolenoid ...
Página 24
... whole trian- gle ABC will coincide with the whole triangle DEF , and be equal to it ; and the remaining angles of one triangle will coin- cide with the remaining angles of the other , and be equal to them , namely , the angle B to E ...
... whole trian- gle ABC will coincide with the whole triangle DEF , and be equal to it ; and the remaining angles of one triangle will coin- cide with the remaining angles of the other , and be equal to them , namely , the angle B to E ...
Página 29
... whole angle BAC is equal to the whole angle BGC . But the angle BGC is , by hypothesis , equal to the angle EDF ; therefore also the angle BAC is equal to EDF . Hence the triangles ABC , DEF are equal in all re- spects ( 4. 1 ...
... whole angle BAC is equal to the whole angle BGC . But the angle BGC is , by hypothesis , equal to the angle EDF ; therefore also the angle BAC is equal to EDF . Hence the triangles ABC , DEF are equal in all re- spects ( 4. 1 ...
Página 43
... whole exterior angle ACD is equal to the two interior and opposite_angles A and B together . Therefore , if any side & c . Q. E. D. Cor . The difference between the exterior angle and either of the interior and opposite angles is equal ...
... whole exterior angle ACD is equal to the two interior and opposite_angles A and B together . Therefore , if any side & c . Q. E. D. Cor . The difference between the exterior angle and either of the interior and opposite angles is equal ...
Otras ediciones - Ver todas
Elements of Geometry: Being Chiefly a Selection From Playfair's Geometry John Playfair Sin vista previa disponible - 2023 |
Elements of Geometry: Being Chiefly a Selection From Playfair's Geometry John Playfair Sin vista previa disponible - 2023 |
Términos y frases comunes
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
Pasajes populares
Página 36 - Any two sides of a triangle are together greater than the third side.
Página 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.
Página 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...
Página 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.
Página 20 - LET it be granted that a straight line may be drawn from any one point to any other point.
Página 38 - Problem. At a given point in a given straight line to make a rectilineal angle equal to a given rectilineal angle.
Página 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.
Página 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...
Página 36 - The greater angle of every triangle is subtended by the greater side, or has the greater side opposite to it.