B
the surface area (SA ) is made up of 2 rectangles 2 by 6, 2 rectangles 2 by 5 and 2 rectangles 6 by 5
SA = 2( 2 × 6 ) + 2(2 × 5 ) + 2(6 × 5 )
= 24 + 20 + 60 = 104 m²
