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Acute, obtuse, and right triangles
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This lesson is a starting point for classifying triangles by their angles.
A right triangle has one right angle. (What about the other two angles? We'll find out.)
An obtuse triangle has one obtuse angle. (What about the other two angles? We'll find out.)
An acute triangle has THREE acute angles.
A right triangle has one right angle. (What about the other two angles? We'll find out.)
An obtuse triangle has one obtuse angle. (What about the other two angles? We'll find out.)
An acute triangle has THREE acute angles.
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