Geometry, Theorems and Problems

 

Problem 232. Parallelogram, Line through a vertex, Perpendicular lines

The figure shows a parallelogram ABCD, A'C' is a line through the point D. If a, b, and c are the perpendiculars drawn from A, B, and C to the line A'C', respectively, prove that: b = a + c. View or post a solution.
  

Elearn 231: Parallelogram, Perpendicular lines 

Problem 232 on Twitter:

 

Home | Geometry | Problems | 231-240 | Parallelogram | Email | by Antonio Gutierrez