Geometry classes, Problem 235. Parallelogram, Transversal line, Perpendicular lines. Elearning.

Problem 235. Parallelogram, Transversal line, Perpendicular lines

The figure shows a parallelogram ABCD, A'C' is a transversal line. If a, b, c, and d are the perpendiculars drawn from A, B, C, and D to the line A'C', respectively, prove that: a + b = c + d. Post a comment.

Parallelogram, transversal line

See also:

Parallelogram
Trapezoid
Congruence

Problem about Parallelogram and transversal