The figure below shows a triangle ABC with
the median BD such that angle A = 3(angle C), and angle ADB = 45
degrees. Prove that angle C = 22.5 degrees. Try to use elementary geometry (Euclid's Elements.)
See
also: Art 00
PicSketch  Pencil Sketch & Drawing Photo Filter Effects
PicSketch by Softease Tech Co., Limited is a photo sketch app
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