Answer:
the sum of the angles of a triangle = 180°
A =60°+a
B =60°-a
we calculate the measure of the angle C:
C = 180°-(60+a+60-a)
C= 180-120=60°
we can also see that +a-a=0
so the angle C =180-60-60 = 60°
Explanation:
9.4m questions
12.2m answers