What is the perimeter of triangle which sides measure 68and 10 inches?

Answer 1

a perimiter is always the distance all the way round. So it will be 6+ 8+10 but do it in stages

6+8=14 now add the last piece 14+10=24 (6+8+10=24) it does not matter if it is feet or miles or mm.

Think of walking round the triangle. Hope that helps.