If ad is the height on the waist of isosceles △ ABC and ∠ DAB = 60 °, then the degrees of the three angles of △ ABC are______ .

If ad is the height on the waist of isosceles △ ABC and ∠ DAB = 60 °, then the degrees of the three angles of △ ABC are______ .

① As shown in the figure, the \ \ \ \ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ 5 ° or ∠ BAC = 75 °, B = 30 °, C = 75 ° or ∠ BAC = 30 °, B = 30 ° and C = 120 °