It is known that: as shown in the figure, the diagonal of rectangle ABCD intersects at O, AE bisects ∠ bad intersects BC at e, ∠ CAE = 15 °, then ∠ BOE=______ °.

It is known that: as shown in the figure, the diagonal of rectangle ABCD intersects at O, AE bisects ∠ bad intersects BC at e, ∠ CAE = 15 °, then ∠ BOE=______ °.

∵ AE bisection ∠ bad intersects BC with E, ∵ AEB = 45 °, ab = be, ∵ CAE = 15 °, ∵ ACB = ∠ AEB - ∠ CAE = 45 ° - 15 ° = 30 °, ∵ Bao = 60 ° and ∵ OA = ob, ∵ boa is equilateral triangle, ∵ OA = OB = AB, that is ob = AB = be, ∵ BOE is isosceles triangle, and ∵ OBE = ∠ OCB = 30