A pedestal in a craft store is in the shape of a triangular prism. The bases are triangles with side lengths of 17 cm, 19 cm, and 21 cm. The store owner used 285 cm2 of burlap cloth to cover the lateral area of the pedestal. Find the height of the pedestal.

Aresearcher believes increased perceived control influence the well-being of residents at a nursing home. to test this , she allowed one group of residents to have control over their daily lies, (where to eat etc) . the other group of 5 residents had these deceisions made by staff. the resident's feelings of well-being were measured on a 10 point scale at the end of a one month trial period. is there a difference on well-being?