To determine if the angles 102°, 36°, and 42° can form a triangle, let's use the triangle inequality theorem.
According to the theorem, for a triangle to be formed, the sum of any two angles must be larger than the third angle.
Let's check all the possible combinations:
1. 102° + 36° = 138° (which is larger than 42°)
2. 102° + 42° = 144° (which is larger than 36°)
3. 36° + 42° = 78° (which is smaller than 102°)
Therefore, the angles 102°, 36°, and 42° cannot form a triangle since the sum of the first two angles is not larger than the third angle.