Solve triangles: angle bisector theorem

Use the angle bisector theorem to find missing side lengths in triangles.
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angle, D, A, C, equals, angle, B, A, D.
What is the length of start overline, A, C, end overline?
Round to one decimal place.
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3, slash, 5
  • a simplified improper fraction, like 7, slash, 4
  • a mixed number, like 1, space, 3, slash, 4
  • an exact decimal, like 0, point, 75
  • a multiple of pi, like 12, space, p, i or 2, slash, 3, space, p, i