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 138
elogram, when the point is within the bases, butif the point is outside the bases the difference of the trianglesis e^ half the parallelogram. Also, if two adjacent sides of a parallelogram and the diagonal between them be the basesof three triangles, icith a common vertex, the triangle withl for…
Geometry
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