Name the triangles that are classified by angles.
right, scalene, isosceles
scalene, isosceles, equilateral
acute, right, obtuse
obtuse, isosceles, acute
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The triangles that are classified by angles are acute, right, and obtuse triangles.
To determine which type of triangle it is based on its angles, you need to measure and compare the angles formed by its sides.
1. Acute triangle: An acute triangle has three acute angles, which means all angles are less than 90 degrees. To classify a triangle as acute, measure each of its angles and ensure that all three angles are less than 90 degrees.
2. Right triangle: A right triangle has one right angle, which measures exactly 90 degrees. To classify a triangle as a right triangle, measure each of its angles and find one angle that is exactly 90 degrees.
3. Obtuse triangle: An obtuse triangle has one obtuse angle, which measures greater than 90 degrees. To classify a triangle as an obtuse triangle, measure each of its angles and find one angle that is greater than 90 degrees.
Therefore, the correct answer to your question is:
Acute, right, obtuse.