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Answer: Answer down below.
Explanation:
<span>The correct answer is A. An interrogative pronoun is most likely used to introduce a question. The word "interrogative" means "relating to a question," so an interrogative pronoun must be a pronoun that relates to a question. Remember that interrogative pronouns are what, which, who/whom, and whose. These pronouns are used to ask questions. For example: Which book is mine? Who is at the door? What time do we have to leave? </span>
Formula of circle:
C= 2πr
The radius is half of the diameter, so divide 9 by 2
18/2=9
Then plug in 9 as the radius in the formula.
C= 2π(9)
Using you calculator multiply 2 by the symbol "π" and 9
Exact Form is 18π
Decimal Form is 56.54866776...
