## The Elements of Euclid: Also the Book of Euclid's Data ...cor. viz. The first six books, together with the eleventh and twelfth |

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Resultat 1-5 av 5

Side 278

See N. TO , 1o describe in the greater of two fpheres which have the same center

, a solid polyhedron , the superficies of which shall not meet the leffer

there be two

See N. TO , 1o describe in the greater of two fpheres which have the same center

, a solid polyhedron , the superficies of which shall not meet the leffer

**sphere**. Letthere be two

**spheres**about the same center A ; it is required to describe in the ... Side 283

And if in the lefser

straight lines ... ftraight lines from the center of the

of the solid polyhedron in the greater

the ...

And if in the lefser

**sphere**there be described a solid polyhedron by drawingstraight lines ... ftraight lines from the center of the

**sphere**drawn to all the anglesof the solid polyhedron in the greater

**sphere**meet the superficies of the lefser ; inthe ...

Side 284

Wherefore the whole solid polyhedron in the greater

solid polyhedron in the other , the triplicate ratio of that which AB the

femidiameter of the first has to the semidiameter of the other ; that is , which the

diameter BD of ...

Wherefore the whole solid polyhedron in the greater

**sphere**has to the wholesolid polyhedron in the other , the triplicate ratio of that which AB the

femidiameter of the first has to the semidiameter of the other ; that is , which the

diameter BD of ...

Side 285

therefore c also the

in the

which is impossible . therefore the

therefore c also the

**sphere**GHK is greater than the solid polyhe- Book XII . dronin the

**sphere**DEF . but it is also less , because it is contained c . 14. So within it ,which is impossible . therefore the

**sphere**ABC has not to any**sphere**less than ... Side 13

13

the

drawn to the circumference of the circle are equal . II . A great circle of the

...

13

**SPHERICAL**TRIGONOMETRY . DEFINITIONS . THE I. HE pole of a circle ofthe

**sphere**is a point in the superficies of the**sphere**, from which all straight linesdrawn to the circumference of the circle are equal . II . A great circle of the

**sphere**...

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added alſo altitude angle ABC angle BAC baſe becauſe Book Book XI caſe circle circle ABCD circumference common cone cylinder Definition demonſtrated deſcribed diameter divided double draw drawn equal equal angles equiangular equimultiples exceſs fame fides firſt folid fore four fourth given angle given in poſition given in ſpecies given magnitude given ratio given ſtraight line greater Greek half join leſs likewiſe magnitude manner meet muſt oppoſite parallel parallelogram perpendicular plane priſm produced PROP proportionals Propoſition pyramid radius reaſon rectangle rectangle contained remaining right angles ſame ſecond ſegment ſhall ſhewn ſides ſimilar ſolid ſphere ſquare ſquare of AC taken THEOR theſe third thro triangle ABC wherefore whole

### Populære avsnitt

Side 157 - D ; wherefore the remaining angle at C is equal to the remaining angle at F ; Therefore the triangle ABC is equiangular to the triangle DEF. Next, let each of the angles at C, F be not less than a right angle ; the triangle ABC is also, in this case, equiangular to the triangle DEF.

Side 24 - ... 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, ECA equal to the angles DEF, EFD, viz.

Side 45 - 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 73 - THE straight line drawn at right angles to the diameter of a circle, from the extremity of...

Side 163 - 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 81 - ELF. Join BC, EF ; and because the circles ABC, DEF are equal, the straight lines drawn from their centres are equal: therefore the two sides BG, GC, are equal to the two EH, HF ; and the angle at G is equal to the angle at H ; therefore the base BC is equal (4.

Side 323 - Equiangular parallelograms have to one another the ratio which is compounded of the ratios of their sides.

Side 80 - EA : and because AD is equal to DC, and DE common to the triangles ADE, CDE, the two sides AD, DE are equal to the two CD, DE, each to each ; and the angle ADE is equal to the angle CDE, for each of them is a right angle ; therefore the base AE is equal (4.

Side 36 - 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.