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What is the area of the circle whose equation is (x - 9)^2 + (y - 3)^2 = 64? 4p 8p 16p 64p
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2 votes
What is the area of the circle whose equation is (x - 9)^2 + (y - 3)^2 = 64?

4p

8p

16p

64p

User Knightburton
by
5.7k points

2 Answers

2 votes

Answer:

16pi

Explanation:

User Skrilla
by
5.6k points
5 votes
You can read off the square of the radius immediately; it is 64.  Thus, the radius is 8, and the area of the circle is C = pi*r^2, or   C = pi*(8 units)^2.
User Konstantin Berkov
by
5.4k points
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