An illustration that is used to prove that triangle EFD is equilateral given that triangle ABC is equilateral and AE=BF=CD, vintage line drawing or en

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An illustration that is used to prove that triangle EFD is equilateral given that triangle ABC is equilateral and AE=BF=CD, vintage line drawing or engraving illustration.

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Size: 5000px × 4959px
Photo credit: © Patrick Guenette / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: angles, art, black, congruent, drawing, engraved, engraving, equal, equilateral, geometric, illustration, inscribed, line, proof, shape, theorem, theorems, triangle, triangles, vector, vectors, vintage, white