Pertanyaan ada digambar thx before xD (foto Full HD)

Sisi BC (lebar) persegi panjang ABCD = Sisi BC (panjang) persegi panjang PBCQ = 12 cm

BC/AB = QC/BC
12/16 = QC/12
QC = 9 cm ---> lebar

L PBCQ = p × l = 12 × 9 = 108 cm^2

Cmiiw yayayayayayaya