The perimeter, area and volume of a tetrahedron (the solid whose faces are 4 equiliateral triangles) are respectively: P=6a; A=√3a2; and V=√2a3/12, where a is the length of an edge. An edge of the tetrahedron is measuered to be x cm where x = 17 and the uncertainty in the measurement is ±1cm, what is the percent uncertainty in the lench of an edge? What are the absolute and percent uncertainties in the perimeter, area and volume of the tetrahedron?