Question

40 degree + x+ 60 degree = 180 degree

Answer 1

Answer:

x = 80°

Step-by-step explanation:

40+x+60 = 180

40+60+x = 180 (Commutativity)

(40+60)+x = 180 (Associativity)

100+x = 180

x = 180-100

x = 80°

Please mark my answer as brainliest.