tolong kerjakan nomor 1 pake cara yaa mksh

jika df= 16 berarti de/ef= 8 cm
L1 = a x t :2
L1 = 16 x 2 : 2
L1 = 16 x 1 = 16 cm²

L2 = p x l
L2 = 8 x 4
L2 = 32 cm²

Lgab = 16 + 32 = 48 cm²