SOLUTION: If a circle has a circumference of 18 mm, what is its radius? Use the Pythagorean Theorem to find the distance between the points (-2, 4) and (1, 5)

Question 814997: If a circle has a circumference of 18 mm, what is its radius?
Use the Pythagorean Theorem to find the distance between the points (-2, 4) and (1, 5)

Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
c = 2 pi r = 18
r = 18 / (2 pi) = 2.864789 mm
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d = sqrt( 3*3 + 1*1 ) = 3.1622777
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