SOLUTION: The area of a circle is given by ( π k^2 -12k π + 36 π ) square inches. What is the radius of the circle? A.)k+3 B.)k+4 C.)k-6 D.)k-12

SOLUTION: The area of a circle is given by ( π k^2 -12k π + 36 π ) square inches. What is the radius of the circle? A.)k+3 B.)k+4 C.)k-6 D.)k-12

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Question 724330: The area of a circle is given by ( π k^2 -12k π + 36 π ) square inches. What is the radius of the circle?
A.)k+3 B.)k+4 C.)k-6 D.)k-12
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
( π k^2 -12k π + 36 π )

π(k^2 -12k + 36)

π(k-6)^2

It's in the form π*r^2, so r = k-6
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