## The Elements of Euclid: The Errors, by which Theon, Or Others, Have Long Ago Vitiated These Books are Corrected, and Some of Euclid's Demonstrations are Restored. Also, the Book of Euclid's Data, in Like Manner Corrected. viz. the first six books, together with the eleventh and twelfth |

### Inni boken

Side 61

One

the inside or outside . * For , if it be possible , let the

ABC in more points than one , and first on the inside , in the points B , D ; join BD

...

One

**circle**cannot touch another in more points than one , whether it touches it onthe inside or outside . * For , if it be possible , let the

**circle**EBF touch the**circle**ABC in more points than one , and first on the inside , in the points B , D ; join BD

...

Side 79

If from any point without a

AB , AC , the rectangles contained by the whole lines and the parts of them

without the

rectangle ...

If from any point without a

**circle**, there be drawn two straight lines cutting it , asAB , AC , the rectangles contained by the whole lines and the parts of them

without the

**circle**, are equal to one another , viz . the rectangle BA , AE to therectangle ...

Side 81

Also, the Book of Euclid's Data, in Like Manner Corrected. viz. the first six books,

together with the eleventh and t Euclid, Robert Simson. VI . A

described about a rectilineal figure , when the circumference of the

...

Also, the Book of Euclid's Data, in Like Manner Corrected. viz. the first six books,

together with the eleventh and t Euclid, Robert Simson. VI . A

**circle**is said to bedescribed about a rectilineal figure , when the circumference of the

**circle**passes...

Side 202

EFGH be two

square of FH , so is the

square ...

**CIRCLES**are to one another as the squares of their diameters . * Let ABCD ,EFGH be two

**circles**, and BD , FH their diameters : as the square of BD to thesquare of FH , so is the

**circle**ABCD , to the**circle**EFGH . For , if it be not so , thesquare ...

Side 203

excess of the

, if from the greater of two unequal magnitudes there be taken more than its half ,

and from the remainder more than its half , and so on , there shall at length ...

excess of the

**circle**EFGH above the space S : because , by the preceding lemma, if from the greater of two unequal magnitudes there be taken more than its half ,

and from the remainder more than its half , and so on , there shall at length ...

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The Elements of Euclid, Viz; The First Six Books: Together With the Eleventh ... Euclid Euclid Ingen forhåndsvisning tilgjengelig - 2018 |

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

### Vanlige uttrykk og setninger

added altitude angle ABC angle BAC base centre circle circle ABCD circumference common cone contained cylinder definition demonstrated described diameter divided double draw drawn equal equal angles equiangular equimultiples Euclid excess fore four fourth given angle given in position given in species given magnitude given ratio given straight line gles greater Greek half join less likewise manner meet multiple Note opposite parallel parallelogram pass perpendicular plane prism produced PROP proportionals proposition pyramid Q. E. D. PROP radius reason rectangle rectangle contained rectilineal figure remaining right angles segment shown sides similar sine solid solid angle sphere square square of AC taken THEOR third triangle ABC wherefore whole

### 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.