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The figure below shows a triangle ABC with the median BD such that angles A and DBC are equal. If angle BDC is 45 degrees, find the measure of angle A. Try to use elementary geometry (Euclid's Elements.)

Home | Search | Geometry | Problems | All Problems | Open Problems | Visual Index | 10 Problems | 981-990 | Triangles | Median | Midpoint | Congruence | 45 degrees | Email | Solution / comment | By Antonio Gutierrez