A circle having center (0, k), with k>6, is tangent to the lines y=x, y=-x and y=6. What is the radius of this circle?
Answer Choices
A. 6 \sqrt{2}-6
B. 6
C. 6 \sqrt{2}
D. 12
E. 6+6 \sqrt{2}
A circle having center (0, k), with k>6, is tangent to the lines y=x, y=-x and y=6. What is the radius of this circle?
Answer Choices
A. 6 \sqrt{2}-6
B. 6
C. 6 \sqrt{2}
D. 12
E. 6+6 \sqrt{2}