Jawab please no 2 cepet help me!!!!!!!!!!!

24 -18= 6 cm
Luas= pxl + 1/2 (a+b) x t
= 24 x 6 + 1/2 (18+6) x 18
= 144 + 1/2 (24) x 18
= 144 + 12 x 18
= 144 + 216
= 360 cm²