Which equation should be used to find the volume of the figure? A rectangular pyramid with a base of 10 centimeters by 6 centimeters and a height of 12 centimeters. V = one-third (10) (6) (12) V = one-half (10) (6) (12) V = one-third (10) (6) (13) V = one-half (10) (6) (13)