(体验探究题)如图所示已知┅矩形ABCD中,AB=2BC点E在边DC上,且AE=AB则∠EBC的度数为______度.... (体验探究题)如图所示,已知一矩形ABCD中AB=2BC,点E在边DC上且AE=AB,则∠EBC的度数为______度.