Explanation:
all sides of a triangle = 180
all sides of a triangle = 180
So 2 angle i.e. 90° (right angle) and 30° (given) and let third angle be x
so equation forms like
180 = 90+30+x
180 =120+x
180-120 =x
60 =x
SO THE ANSWER WILL BE 60°
HOPE IT WILL HELP YOU ☺️