The sides of a triangle are (x+4),x and (x-4). If the cosine of the largest angle is 1/5 what is x.

\\\The sides of a triangle are (x+4),x and (x-4). If the cosine of the largest angle is 1/5 what is x.

The sides of a triangle are (x+4),x and (x-4). If the cosine of the largest angle is 1/5 what is x.