## The Elements of Euclid |

### Inni boken

Resultat 1-5 av 14

Side 25

o to equal angles in each; then shall the other sides be equal, each to each; and

also the third angle of the one to the third angle of the other. Let ABC, DEF be two

triangles which have the

o to equal angles in each; then shall the other sides be equal, each to each; and

also the third angle of the one to the third angle of the other. Let ABC, DEF be two

triangles which have the

**angles ABC**, BCA equal to the angles DEF, EFD, viz. Side 73

to the two

FAC, and each of them is therefore a right (10. des. 1.) angle ... E C And because

the two

to the two

**angles ABC**, ACB; therefore the angle BAC is equal to the D. angleFAC, and each of them is therefore a right (10. des. 1.) angle ... E C And because

the two

**angles ABC**, BAC, of the triangle ABC are together less (17. 1.) than two ... Side 86

to the angle BAC, and the angle DAB is bisected by the straight line AC: in the

same manner, it may be demonstrated that the

severally bisected by the straight lines BD, AC; therefore, because the angle DAB

is ...

to the angle BAC, and the angle DAB is bisected by the straight line AC: in the

same manner, it may be demonstrated that the

**angles ABC**, BCD, CDA areseverally bisected by the straight lines BD, AC; therefore, because the angle DAB

is ...

Side 89

angle FLC: and because KC is equal to CL, KL is double of KC: in the same

manner, it may be shown that HK is ... is also double of the angle - CBF ;

therefore the angle ABF is equal G to the angle CBF ; wherefore the

bisected by ...

angle FLC: and because KC is equal to CL, KL is double of KC: in the same

manner, it may be shown that HK is ... is also double of the angle - CBF ;

therefore the angle ABF is equal G to the angle CBF ; wherefore the

**angle ABC**isbisected by ...

Side 169

equal to AE, and AB is common, the two D DA, AB are equal to the two EA, AB,

and the

than two right

...

equal to AE, and AB is common, the two D DA, AB are equal to the two EA, AB,

and the

**angle**DAB is equal to the**angle**... BCA, ACD, CDA, ADB are greaterthan two right

**angles**: and because the three**angles**of each of the triangles**ABC**,...

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The Elements of Euclid: Viz, the First Six Books, Together with the Eleventh ... Euclid,Robert Simson Uten tilgangsbegrensning - 1834 |

The Elements of Euclid: Viz. The First Six Books, Together With the Eleventh ... Robert Simson Ingen forhåndsvisning tilgjengelig - 2017 |

The Elements of Euclid: Viz. The First Six Books, Together With the Eleventh ... Robert Simson Ingen forhåndsvisning tilgjengelig - 2017 |

### Vanlige uttrykk og setninger

altitude angle ABC angle BAC base BC BC is equal BC is given bisected centre circle ABCD circumference cone cylinder demonstrated described diameter draw drawn equal angles equiangular equimultiples Euclid excess fore given angle given in magnitude given in position given in species given magnitude given point given ratio given straight line gles gnomon join less Let ABC meet multiple parallel parallelogram AC perpendicular point F polygon prism proportionals proposition pyramid Q. E. D. PROP radius ratio of AE rectangle CB rectangle contained rectilineal figure remaining angle right angles segment sides BA similar sine solid angle solid parallelopiped square of AC straight line AB straight line BC tangent THEOR third three plane angles triangle ABC triplicate ratio vertex wherefore

### Populære avsnitt

Side 45 - Ir 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.

Side 41 - If a straight line be divided into any two parts, the rectangle contained by the whole and one of the parts, is equal to the rectangle contained by the two parts, together with the square of the aforesaid part.

Side 54 - Ir any two points be taken in the circumference of a circle, the straight line which joins them shall fall within the circle. Let ABC be a circle, and A, B any two points in the circumference ; the straight line drawn from A to B shall fall within the circle.

Side 18 - ABD, the less to the greater, which is impossible ; therefore BE is not in the same straight line with BC.

Side 10 - From a given point to draw a straight line equal to a given straight line. Let A be the given point, and BC the given straight line: it is required to draw from the point A a straight line equal to BC.

Side 8 - Let it be granted that a straight line may be drawn from any one point to any other point.

Side 256 - Again ; the mathematical postulate, that " things which are equal to the same are equal to one another," is similar to the form of the syllogism in logic, which unites things agreeing in the middle term.

Side 129 - 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.

Side 23 - At a given point in a given straight line, to make a rectilineal angle equal to a given rectilineal angle. Let AB be the given straight line, and A...

Side 20 - ANY two angles of a triangle are together less than two right angles.