SOLUTION: what's the circumcentre of a scalene triangle with the points A (20,20), B (-12,-4) and C (4,-12)?

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Question 915957: what's the circumcentre of a scalene triangle with the points A (20,20), B (-12,-4) and C (4,-12)?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
D = sqrt+%28%28x%5B1%5D-x%5B2%5D%29%5E2%2B%28y%5B1%5D-y%5B2%5D%29%5E2%29%29
A (20,20),
B (-12,-4) AB = sqrt%2832%5E2+%2B+24%5E2%29 = 40
C (4,-12)? BC = sqrt%28-16%5E2+%2B+8%5E2%29+=+sqrt%28320%29 8√5
A (20,20), AC = sqrt%28-32%5E2+%2B+-16%5E2%29+=+sqrt%281280%29 = 16 √5
P = 40 + 24√5