Question

A student is trying to construct triangles using four different sets of angles. The angles in each set are given below.



Set I: 45°, 60°, 75°
Set II: 150°, 110°, 100°
Set III: 50°, 50°, 50°
Set IV: 90°, 90°, 90°


Which set will allow the student to construct a triangle?

Answer 1

the sum of interior angle of triangle is = 180

1. 45+60+75=180
2. 150+110+100≠180
3. 50+50+50≠180
4. 90+90+90≠180

so the students can only make triangle with set one