Exercises on Euclid and in modern geometry for the use of schools, private students, and junior university students (1881)
McDowell, James L · Cambridge, Deighton, Bell, and Co. · leaf 91
lel to AC meeting EH producedin E AEEK and BGHE are ob-viously rectangles. Therefore EL is the sum of theperpendiculars on the first diagonalAC, and CE is the sum of the per-pendiculars on the second diagonalBE. The triangles Cliff, DMFhave the angles at If equal and the angles at H and E rio-ht,… … 96.] AND IN MODERN GEOMETRY. 63 95. The diagonals of a quadrilateral inscribed in a circleare as the sums of the rectangles under the pairs of sidesterminated in each diagonal. Fig. to (94). Suppose ABCD to be any quadrilateral capableof being inscribed in a circle, and let AE, CF, BG, DH be…
Geometry
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