if m<B = 60 and m<A= 80 find m<ACD

140

50

60

40

1 answer

m<ACD = 180 - (m<A + m<B)
m<ACD = 180 - (80 + 60)
m<ACD = 180 - 140
m<ACD = 40

Therefore, m<ACD = 40.

The correct answer is 40.