The First Six Books with NotesR. Milliken, 1822 - 179 pages |
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Page 53
... pass through the centre . PROP . II . THEOR . B. 1 . If any two points ( A and B ) be taken in the cir- Fig . 6 . cumference of a circle , the right line which joins them See N. falls within the circle . For , if it be possible , let ...
... pass through the centre . PROP . II . THEOR . B. 1 . If any two points ( A and B ) be taken in the cir- Fig . 6 . cumference of a circle , the right line which joins them See N. falls within the circle . For , if it be possible , let ...
Page 54
... pass through the centre , it is perpendicular to it . And if it cut it at right angles , it bisects it . Part 1 ... pass through the centre , they do not bisect one another . If one of the lines pass through the centre , it is evident ...
... pass through the centre , it is perpendicular to it . And if it cut it at right angles , it bisects it . Part 1 ... pass through the centre , they do not bisect one another . If one of the lines pass through the centre , it is evident ...
Page 56
... passes through the centre . The remaining part of the diameter is the least . Those lines which make equal angles with the diame- ter are equal . That line which is nearer to the line passing through the centre is greater than one more ...
... passes through the centre . The remaining part of the diameter is the least . Those lines which make equal angles with the diame- ter are equal . That line which is nearer to the line passing through the centre is greater than one more ...
Page 57
... passing through the centre , is greater than the more remote . But of those incident upon the convex circumference , that line is the least which , if produced , would pass through the centre . Of the rest that which is nearer to the ...
... passing through the centre , is greater than the more remote . But of those incident upon the convex circumference , that line is the least which , if produced , would pass through the centre . Of the rest that which is nearer to the ...
Page 58
... passes through the centre is greater than any other AX . Draw ZX , and ZY is equal to ZX ( 5 ) , therefore if AZ be ... pass through the centre is less than any other AX . Draw ZF and ZX ; ZX and XA are greater than ( 9 ) Prop.20 ZA ( 9 ) ...
... passes through the centre is greater than any other AX . Draw ZX , and ZY is equal to ZX ( 5 ) , therefore if AZ be ... pass through the centre is less than any other AX . Draw ZF and ZX ; ZX and XA are greater than ( 9 ) Prop.20 ZA ( 9 ) ...
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Common terms and phrases
absurd AC and BD AC and CB AC are equal alternate angles angle ABC angle ACD angle BAC angle equal base bisected centre circumference CKMB Constr constructed contained in CD demonstrated double the rectangle double the square equal angles equal sides equal to AC equal to double equi equi-multiples equi-submultiples equiangular Euclid evident fore four magnitudes proportional four right angles given angle given circle given line given right line given triangle half a right Hypoth inscribed less line CD manner mean proportional multiple oftener parallel parallelogram perpendicular point of contact PROB produced Prop proposition radius rectangle under AC right line AB Schol segment side AC similar squares of AC submultiple taken tangent THEOR third tiple triangle ABC vertex
Popular passages
Page 145 - A plane rectilineal angle is the inclination of two straight lines to one another, which meet together, but are not in the same straight line.
Page 2 - A circle is a plane figure contained by one line, which is called the circumference, and is such, that all straight lines drawn from a certain point within the figure to the circumference are equal to one another : 16.
Page 28 - 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.
Page 22 - All the interior angles of any rectilineal figure, together with four right angles, are equal to twice as many right angles as the figure has sides.
Page 118 - A straight line is said to be cut in extreme and mean ratio, when the whole is to the greater segment as the greater segment is to the less.
Page 146 - A plane angle is the inclination of two lines to one another in a plane, which meet together, but are not in the same direction.
Page 168 - The first of four magnitudes is said to have the same ratio to the second, which the third has to the fourth, when any equimultiples whatsoever of the first and third being taken, and any equimultiples whatsoever of the second and fourth ; if the multiple of the first be less than that of the second, the multiple of the third is also less than that of the fourth...
Page 3 - Things which are equal to the same thing are also equal to one another. 2. If equals be added to equals, the wholes are equal. 3. If equals be subtracted from equals, the remainders are equal. 4. Things which coincide with one another are equal to one another.
Page 25 - DE : but equal triangles on the same base and on the same side of it, are between the same parallels ; (i.
Page 3 - A rhombus is that which has all its sides equal, but its angles are not right angles.