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Themeasure of the EFandxfrom the given diagram is58 and 7respectively.Bisection of lines4) From thegiven diagram;DF = DE + EF9x - 39 = 47 + 3x + 109x - 3x = 57 + 396x = 96x = 96/6x = 16Get the value of EFEF = 3x + 10EF = 3(16) + 10EF = 58Themesure of EFis585) HJ = HI + IJ7x - 27 = 3x - 5 + x - 17x - 27 = 4x - 67x - 4x = -6 + 273x = 21x = 7Hence thevalue of xis7Learn more onbisectionhere:brainly.com/question/25770607...