Which best compares a molecule that has a trigonal planar shape with one that has a trigonal pyramidal shape?

Bf3
since the  molecular geometry   of nh3   is trigonal pyramidal, the vector sum of the three h-n bond dipole moments, u  hn   = 1.33 d, is 1.47 d and the nh3   molecule is polar . in a trigonal  planar  molecule such as bf3   the vector sum of the three fb bond dipole moments

That depends. cause the owl finished it in one lick

Theoretical temperature at which molecules stop moving and no more heat can be removed from the object. kelvin: absolute zero degrees. none of the above.