| John Mason Good - 1813 - 714 pages
...the diameter of the circle described about the triangle. Prop. D. Theor. The rectangle contained by the diagonals of a quadrilateral inscribed in a circle, is equal to both the rectangles contained by its opposite sides. Book XI. Def. 1.— A solid is that wh.ich hath length, breadth, and... | |
| Euclides - 1816 - 588 pages
...AD. If therefore from an angle, £c. QED \ PROP. D. THEOR. THE rectangle contained by the dfagonals of a quadrilateral inscribed in a circle, is equal to both the rectangles contained by its opposite sides. Let ABCD he any quadrilateral inscribed in a circle, and join AC,... | |
| John Playfair - Circle-squaring - 1819 - 350 pages
...rectangle EA.AD. If, therefore, from an angle, &c. Q, ED PROP. D. THEOR. The rectangle contained by the diagonals of a quadrilateral inscribed in a circle, is equal to both the rectangles, contained by its opposite . sides. Let ABCD be any quadrilateral inscribed in a circle, and let AC,... | |
| John Playfair - 1819 - 354 pages
...rectangle EA.AD. If, therefore, from an angle, &c. Q, ED PROP. D. THEOR. The rectangle contained by tht diagonals of a quadrilateral inscribed in a circle, is equal to both the rectangles, contained by its opposite Let ABCD be any quadrilateral inscribed in a circle, and let AC. BD be drawn... | |
| Euclid, Robert Simson - Geometry - 1821 - 514 pages
...rectangle1 EA, AD. If therefore, from an angle, &c.' QED PROP. D. THEOR. THE rectangle contained by the diagonals of a quadrilateral inscribed in a circle, is equal to both the rectangles contained by its opposite sides.* Let ABCD be any quadrilateral inscribed in a circle, and join AC,... | |
| Peter Nicholson - Mathematics - 1825 - 1046 pages
...rectangle EA, AD. I f therefore from an angle, &c. QED PROB. D. THEOREM. The rectangle contained by the diagonals of a quadrilateral inscribed in a circle, is equal to both the rectangles contained by its opposite sides. Let ABCD be any quadrilateral inicribed in a circle, and join AC,... | |
| Eugenius Nulty - Geometry - 1836 - 242 pages
...(cor. 11), are similar, and AB : BE :: BD : B С ; whence A BB С=B DB E. THEOREM V. 30. TTie product of the diagonals of a quadrilateral inscribed in a circle, is equal to both the products of it» opposite sides. Let AB С D be a quadrilateral inscribed in the circle A С D, and... | |
| John Playfair - Geometry - 1836 - 148 pages
...another as the circumferences on which they stand. PROP. XXVIII. THEOR. The rectangle contained by the diagonals of a quadrilateral inscribed in a circle, is equal to both the rectangles contained by its opposite sides. Let ABCD be any quadrilateral inscribed in a circle, and join AC,... | |
| Mathematics - 1836 - 488 pages
...perpendicular, and the diameter of the circle described about the triangle. D. The rectangle contained by the diagonals of a quadrilateral inscribed in a circle, is equal to both the rectangles, contained by its opposite sides. E. If an arch of a circle be bisected, and from the extremities of... | |
| Euclid, James Thomson - Geometry - 1837 - 410 pages
...rectangle EA.AD. If, therefore, from an angle of a triangle, &c. PROP. E. THEOR. THE rectangle contained by the diagonals of a quadrilateral inscribed in a circle, is equal to both the rectangles contained by its opposite sides. Let ABCD be a quadrilateral inscribed in a circle, and join AC, BD;... | |
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