in a triangle abc the incircle touches the sides bc,ca and ab respectively at d,e and f.if the radius of the incircle is 4units and if bd,ce and af are consecutive integers,find the sides of triangle abc
Suppose that BD = x, CE = x + 1 and AF = x + 2. Then CD = CE = x + 1, AE = AF = x + 2, BF = BD = x.
Hence, a = BC = x + x + 1 = 2x + 1,
b = CA = x + 1 + x + 2 = 2x + 3,
c = AB = x + 2 + x = 2x + 2;
Therefor x = 6 and the side are a = 13 , b = 15 , c = 14