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Question 1 - 11th Grade Mathematics: Number and Operations Practice Test for the SBAC

The diagram shows a circle with a center at A. ADB is a right angle. EC is a line segment. Points A and D lie on this segment. Segment AE has length x, segment BD has length y, and angle BAC has measure m degrees.

Which of these statements is/are true based on the given diagram?

  1. segment AD \(\cong\) segment DC
  2. sin (BAC) = \(\frac{y}{x}\)
  3. EAB and CAB are complementary angles
  4. segment EC \(\cong\) 2(segment EA)

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