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:

Step1: Classify by angles

An obtuse triangle has one angle greater than \(90^{\circ}\). From the figure, we can assume (by visual inspection as no angle measures are given but the shape suggests) one angle is obtuse.

Step2: Classify by sides

A scalene triangle has all sides of different lengths. Since no sides are marked as equal (and assuming from the figure's appearance), all sides are of different lengths.

Answer:

By angles: obtuse; By sides: scalene