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因為ABCD是矩形,所以角BAD=角ABC=90度,AO=BO,因為AE平分角BAD,所以角BAE=45度,因為角CAE=15度,所以角BAO=60度,三角形AOB是等邊三角形,BO=AB,角ABO=60度,所以角OBC=30度,因為角ABC=90度,角BAE=45度,所以角AE…
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