cara mengerjakannya gimana

a. PQ = ?
AD/AB = SP/PQ
4/16 = 6/PQ
PQ = 6 × 16/4
= 6 × 4 = 24 cm

b. Luas dan keliling PQRS = ?
L = SP × PQ
= 6 × 24 = 144 cm2
k = 2(SP + PQ)
= 2(6 + 24)
= 2(30) = 60 cm

maaf kalau salah
semoga membantu