The convex quadrilateral in the diagram has precisely 3 equal side lengths, and 2 of its interior angles are and as shown. Find the acute angle labeled as "x" in degrees.
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First, let's create rhombus A B 1 C D . ∠ B C B 1 = ∠ B 1 A F = 6 . In △ C F E , ∠ C F E = ∠ A F E = 6 0 . This means that triangles B A F and B 1 A F are congruent therefore ∠ B A F = 6 . This gives measure of ∠ B A D = ( 1 8 0 − 1 0 8 ) − 2 ∗ 6 = 6 0 .
Note:
There is a second solution to this problem: 132.