No, only right angle triangles, but all the angles in a triangle will add up to 180 degrees.
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All right angle triangles have a 90 degree angle and two acute angles that add up to 90 degrees
All right angle triangles have a 90 degree angle and two acute angles which all together the 3 angles add up to 180 degrees.
All right angle triangles have 2 acute angles and one 90 degree angle.
They are the triangles that contain a 90 degree angle and two acute angles
All right angle triangles have a 90 degree angle and two acute angles that add up to 90 degrees.