Find the perimeter of the triangle shown below

10 mm8 mm8 mm[Graphs generated by this script: initPicture(-3,7,-3,7);path([[0,0],[2.6,4],[4,0],[0,0]]);text([1.3,2],'10 mm','left');text([3.3,2],'8 mm','right');text([2,0],'8 mm','below');]

The perimeter is .