Предмет: Геометрия, автор: rostikra2010

СРОЧНО ПОМОГИТЕ ПОЖАЛУЙСТА...

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Автор ответа: gromejulia266

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6. кут FAE=40 і кут А теж 40 через те,що вони вертикальні, аналогічно з кутом DCK=40 кут С =40 бо вони вертикальні,отже кут А=40,кут С=40 кути у рівнобедреного трикутника рівні. тоді трикутник АВС- рівнобедрений

знаю тільки це

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