you need to find the distance between the 3 lengths of the lines from the given points ef = sqrt ( 6-4) ^2 + 2-2^2) = sqrt 4 = 2 fg = sqrt (6 - 2)^2 + 4-4^2 = sqrt16 = 4 ge = sqrt (6-4)^2 + (2-6)^2) = sqrt 20 = 4.47 circumference = 2 + 4 + 4.47 = 10.47
