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

MATHEMATICS

WAEC 2008

If x^o is obtuse, which of the following is true?

A. x > 90
B. 180 < x < 270
C. x < 90
D. 90 < x < 180

Correct Answer: D. 90 < x < 180

Explanation

obtuse angle \(\to\) 90^o < x < 180^o

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