Answer:
70
Step-by-step explanation:
i took the test
please give me brainlest
80°
Triangle ARC, AR = RC = 30 so triangle ARC is an isosceles triangle
then <A = <C = 70°
If <A = <C = 70° then arcRC = arcRA = 70*2 = 140°
so
arcAC = 360° - arcRC - arcRA
arcAC = 360° - 140° - 140°
arcAC = 80°
