mathematics formulas set hand drawn math geometry school green board with sketch symbols icon flat style |
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| navigate by keyword : mathematics formula chalkboard chalk education school geometry geometric math handwritten doodle equation student hand drawn trigonometry note lesson sketch science algebra calculate board vector illustration symbol number sign numbers blackboard concept green text study drawing icon design fraction proportions pythagoras theorem triangle exponent parallelogram trapezoid sine cosines truncated cone |
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| Mathematics formulas set. Hand drawn math geometry formulas. School green board with sketch symbols icon in flat style. Education concept. Isolated vector illustration |
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