Answer:
Area will be 2(lb + bh + hl)
So 2*(12*9 + 9*4 + 4*12)
384 sqft
Step-by-step explanation:
Here , length (l) = 12 ft
width (w) = 9ft
height(h) = 4ft
Surface area = 2( lw +wh+ lh)
= 2( 12×9 +9×4+4×12)
=2(108+36+48)
= 2×192 = 384 sq. ft
