A student is building a diamond-shaped kite in his science class. To construct the kite, the student has assembled four congruen
t right triangle pieces of fabric to form the diamond. The diagonals of the kite are perpendicular to one another. If angle ABC on the side of the kite is 2004-02-02-01-00_files/i0310000.jpg, what will angle BCD on the tail end of the kite be?