tlng dijawab dikumpulkan besok yg jwb msk surga

Luas permukaan : 2 X ( P x L ) + ( P x T ) + ( L x T )
= 2x( 8 x 3 ) + ( 3 x 5 ) + ( 8 x 5 )
= (2 x 24 ) + (2 x 15 ) + (2 x 40)
= 48 + 30 + 80 = 158
= A.158