16)
AN/NC = 2⁽²/8 = 1/4 => MN || BC
AB/AM = BC/MN
AB = AM + MB = 1 + 4 = 5 cm } =>
5/1 = BC/MN => BC/MN = 5
17)
AB/MN = AC/MP = BC/NP
10⁽⁵/15 = 12⁽⁶/18 = 16⁽⁸/24
2/3 = 2/3 = 2/3 =>
ΔABC ≈ ΔMNP
