1. Because AB=AE, quadrilateral ABCD is a parallelogram and quadrilateral AECD is an isosceles trapezoid, so ∠EAD=∠ADC.

=∠B

Because AB=EA

BC = A.D.

So get a certificate.

2. Because ∠ BAC = 60 ∠ ABO = 60 triangle ABO is an equilateral triangle.

So AB=BO

Because ∠CBA=∠AEB.

So AB=AE

So AE=BO

Because < CBD = 30

So ∠ BOE = 75.