Answer: B. 60°, 60°, and 60°
Step-by-step explanation:
In a triangle, the three interior angles have to add up to exactly 180 degrees. So, we can find out which set of angles can be angles of a triangle by adding them and seeing if they equal 180.
A) 90+42+58 = 190
B) 60+60+60 = 180
C) 100+48+42 = 190
D) 31+75+70 = 176
Since Option B is the only one where the angles equal 180, that is the answer.
Hope this helps!
