The folds create four geometric kites. Also, the 16 right triangles adjacent to the corners of the paper are all congruent, as a
re the 8 right triangles adjacent to the center of the paper. Find the measures of all four angles of the kite labeled ABCD. Use the facts that ∠B ≅ ∠D and that the interior angle sum of a quadrilateral is 360°.
