What is the circumference? C=πd or C=πr2 (Round to the nearest hundredth)
(Worth 25 points)

An an average person has 6×10 by the power of two as many red blood cells as white blood cells a small sample of the blood has 7×10 by the power of three white blood cells about how many red blood cells are in the sample

Me with this one question, and i'll upvote the brainliest answer

The center of the circumscribed circle lies on line segment and the longest side of the triangle is equal to the of the circle.