Geometria, altfel - probleme pentru concursuri
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joi, 27 februarie 2025
aops, https://artofproblemsolving.com/community/c6t48f6h3418669_ltc__if_ltb45o_and_bp__pc_1__2_apc__60o__without_trigonometry
My solution, almost synthetic, since using sin 30=0.5 cannot be synthetic
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Problem, aops, https://artofproblemsolving.com/community/c6t48f6h2267253_equal_angles_wanted_trapezoid_equal_segments_right_angle_related
My solution:
ToT2, pr. 1, 2
Own problem
Own maybe...
2 aops problems
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