Question

classify the triangle by its sides and by measuring its angles.
the triangle can be classified by its angles as
and by its sides as

Explanation:

Triangles are classified by angles (acute, right, obtuse) and sides (scalene, isosceles, equilateral). Since no side lengths or angle measures are given, assume it's a scalene triangle (all sides different) and check angles. If one angle is greater than 90°, it's obtuse.

Answer:

By angles: obtuse; By sides: scalene.