M. N is the trisection point of line AB, and am = one-third AB, P is the midpoint of Nb. If AB = 12 cm, what is pa

M. N is the trisection point of line AB, and am = one-third AB, P is the midpoint of Nb. If AB = 12 cm, what is pa

Am = Mn = NB = 12 / 3 = 4 (CM), so Pb = Nb / 2 = 2 (CM), so PA = ab-pb = 12-2 = 10 (CM)