вот, держи, надеюсь правильно
vysota daet 90 gradusov
ugly A+C = 180 - 56 (B) =124 delennoe na 2 = 62 gradusa ugol A, 62 gradusa ugol C
summa uglov v ACD= 180 gde CDA=90 DAC( BAC) =62
togda ACD= 180 -62-90 = 28
ACD = 28 gradusov
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вот, держи, надеюсь правильно
vysota daet 90 gradusov
ugly A+C = 180 - 56 (B) =124 delennoe na 2 = 62 gradusa ugol A, 62 gradusa ugol C
summa uglov v ACD= 180 gde CDA=90 DAC( BAC) =62
togda ACD= 180 -62-90 = 28
ACD = 28 gradusov