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WAEC Mathematics 2008 Question 26

Question 26

Angles and Polygons

If x° is obtuse, which of the following is true?

  1. A.x > 90
  2. B.180 < x < 270
  3. C.x < 90
  4. D.90 < x < 180
Show the answer and explanation

Answer: D (90 < x < 180)

Explanation

An obtuse angle is bigger than 90° but less than 180°.