luas bangun gabungan di atas adlah

L¹=p x l
= 28 x 22
= 616

L²= 1/2 x a x t
= 1/2 x 22 x (44-28)
= 11 x 16
= 176

L total = 176+616
= 792 cm²

Semoga Membantu :D