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A triangle with one interior angle that is obtuse
A triangle with an obtuse angle.
a triangle with an angle greater than 90; also called an obtuse-angled triangle
a triangle that contains an obtuse interior angle
a triangle in which one of the angles is an obtuse angle
a triangle which contains one obtuse angle
a triangle that has an obtuse angle.
a triangle in which one angle is greater than 90
A triangle with at least one obtuse angle as described above.
One of the interior angles of an obtuse triangle is obtuse ( an obtuse angle is over 90 degrees).
A triangle having one angle over 90 degrees.
A triangle that contains one obtuse angle.
A triangle with exactly one obtuse angle (Lesson 2.6).
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