I think the answer would be A, the meaning of irony is the expression of one’s meaning by using language that normally signifies the opposite, typically for humorous or emphatic effect.
Answer:

Step-by-step explanation:
The radius was divided by 2.
31.4 = 2pi * r
31.4/2pi = 15.7/pi
15.7 = 2pi * r
15.7/2pi = 7.85/pi
(7.85/pi) / (15.7/pi) = 1/2
Answer:
129
Step-by-step explanation:
180-51= 129
129 is corresponding with x
and corresponding angles are equal
so 129 is the answer