Using the formula:

Which is, 3.14 x 2^2 (radius is half of diameter)
Which equals 12.56.
Answer:
A.)
Explanation:
What he is saying is mostly an opinion, but can also be a fact. If he is claiming that soccer is the most popular sport in the world, the most logical answer would be A.), as in it supports his claim the strongest.
B is the answer for the question
Answer:
B: When making a rebuttal
D: During a counterargument
Explanation:
just took the test
Answer: The second sentence, "And if you are the kind of person who is easily embarrassed, then skiing may not be the sport for you," reveals that the authors points of view is 2nd person.
Explanation:
2nd person point of view uses the pronouns you/your/yours. The first sentence does not reveal the POV because the author could potentially be speaking in first person and talking directly to the audience. However, the second sentence makes it clear that 'you' are the main character in the passage.