 Wherefore, in equal circles &c. QED PROPOSITION B. THEOREM If the vertical angle of a triangle be bisected by a straight line which likewise cuts the base, the rectangle contained by the sides of the triangle is equal to the rectangle contained by the...  A Supplement to the Elements of Euclid - Page 367by Daniel Cresswell - 1819 - 410 pagesFull view - About this book
 | University of Bombay - 1916 - 654 pages
...perpendicular be drawn from a vertex of a triangle to the opposite aide, the rectangle contained by the other sides of the triangle is- equal to the rectangle contained by the perpendicular acd the diameter of the circle described about tbe triangle. The rectangle contained by the diagonals... | |
 | University of St. Andrews - 1897 - 600 pages
...its vertex. 6. From the vertex of a triangle a line is drawn perpendicular to the base ; show that the rectangle contained by the sides of the triangle is equal to twice the rectangle contained by the perpendicular and the radius of the circum-circle. ABCD is a cyclic... | |
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