Euclid's plane geometry, practically applied; book i, with explanatory notes, by H. Green |
Inni boken
Resultat 1-5 av 5
Side 14
An Isosceles Triangle c ( isoskelees , having equal legs ) , is i that which has two
equal sides , or legs ; namely , DF and EF in A FDE . 26 . A Scalene Triangle / (
skaleenos , of unequal sides ) , is that which has three unequal B D E G H sides ...
An Isosceles Triangle c ( isoskelees , having equal legs ) , is i that which has two
equal sides , or legs ; namely , DF and EF in A FDE . 26 . A Scalene Triangle / (
skaleenos , of unequal sides ) , is that which has three unequal B D E G H sides ...
Side 23
For equality in triangles one side at least of the one triangle must be given equal
to one side of the other triangle . 2 . ... is at an elevation of 45° : for the angles
BCA , BAC , being each half a rt . angle , the sides which subtend them are equal
.
For equality in triangles one side at least of the one triangle must be given equal
to one side of the other triangle . 2 . ... is at an elevation of 45° : for the angles
BCA , BAC , being each half a rt . angle , the sides which subtend them are equal
.
Side 37
Sch . - In Pr . 24 it is assumed that D and F will be on different sides of EG ; or in
other words that DH is less than DF or DG . PROP . 25 , - THEOR If two triangles
have two sides of the one equal to the two sides of the other , each to each , but ...
Sch . - In Pr . 24 it is assumed that D and F will be on different sides of EG ; or in
other words that DH is less than DF or DG . PROP . 25 , - THEOR If two triangles
have two sides of the one equal to the two sides of the other , each to each , but ...
Side 45
Wherefore , if a side of a triangle be produced , & c . Q . E . D ) COR . I . - All the
interior angles of any rectilineal figure , together with four rt . angles , are equal to
twice as many rt . angles as the figure has sides . DEM . — P . 32 , P 15 , Cor .
Wherefore , if a side of a triangle be produced , & c . Q . E . D ) COR . I . - All the
interior angles of any rectilineal figure , together with four rt . angles , are equal to
twice as many rt . angles as the figure has sides . DEM . — P . 32 , P 15 , Cor .
Side 60
If the sides of a rt . angled a be given in numbers , its hypotenuse may be found :
for set the Os of the sides be added ... tower is 40 feet high , its ditch 30 feet broad
; required the distance from the farther side of the ditch to the top of the tower .
If the sides of a rt . angled a be given in numbers , its hypotenuse may be found :
for set the Os of the sides be added ... tower is 40 feet high , its ditch 30 feet broad
; required the distance from the farther side of the ditch to the top of the tower .
Hva folk mener - Skriv en omtale
Vi har ikke funnet noen omtaler på noen av de vanlige stedene.
Vanlige uttrykk og setninger
ABCD added angle equal apply ascertain assumed Axioms base base BC bisected centre circle circumference coincide common Conc construct contained definition demonstration describe diagonal diameter distance divided draw drawn earth's equal Euclid extremity fall feet figure four Geometry given given point greater half height impossible inches inference intersect join length less line BC measure meet miles named object opposite parallel parallelogram perpendicular plane practical principle produced Prop proposition proved reason rectangle rectil rectilineal representative right angles scale sides square straight line suppose surface thing third triangle true truth units Wherefore whole
Populære avsnitt
Side 36 - If two triangles have two angles of the one equal to two angles of the other, each to each, and also one side of the one equal to the corresponding side of the other, the triangles are congruent.
Side 17 - If a straight line meets two straight lines, so as to make the two interior angles on the same side of it taken together less than two right angles...
Side 17 - Things which are equal to the same thing are equal to one another. 2. If equals be added to equals, the wholes are equal. 3. If equals be taken from equals, the remainders are equal. 4. If equals be added to unequals, the wholes are unequal. 5. If equals be taken from unequals, the remainders are unequal. 6. Things which are double of the same are equal to one another.
Side 41 - We assume that but one straight line can be drawn through a given point parallel to a given straight line.
Side 13 - A diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference.
Side 16 - LET it be granted that a straight line may be drawn from any one point to any other point.
Side 54 - To a given straight line to apply a parallelogram, which shall be equal to a given triangle, and have one of its angles equal to a given rectilineal angle.
Side 21 - If two angles of a triangle be equal to one another, the sides also which subtend, or are opposite to, the equal angles, shall be equal to one another.
Side 22 - Upon the same base, and on the same side of it, there cannot be two triangles that have their sides which are terminated in one extremity of the base, equal to one another, and likewise those which are terminated in the other extremity.
Side 12 - When a straight line standing on another straight line makes the adjacent angles equal to one another, each of the angles is called a right angle ; and the straight line which stands on the other is called a perpendicular to it.
Bibliografisk informasjon
| Tittel | Euclid's plane geometry, practically applied; book i, with explanatory notes, by H. Green |
| Forfatter | Euclides |
| Redaktør | Henry Green |
| distribuert | 1863 |
| Original fra | Oxford University |
| Digitalisert | 14. nov 2006 |
| Eksporter sitat | BiBTeX EndNote RefMan |