Law of sines explained on a blackboard, rough white chalk sketch

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Photo credit: © Marek Uliasz / Alamy / Afripics
License: Royalty Free
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Keywords: blackboard, chalk, circle, concept, education, equation, geometry, graph, indentity, isolated, law, learning, math, mathematics, radius, science, sine, sines, text, triangle, triangulation, trigonometry, vintage