Question

find the total surface area and surface of area of cubical box which is 3.5 long 51.5 board and 2.5 metre height​

Answer 1

Answer:

T.S.A of cuboid = 2lb + 2bh + 2hl

= 2(lb + bh + hl) = 2((3.5)(5.1)+(5.1)(2.5)+3.5(2.5))

= 2(17.85 +12.75 + 8.75)

= 2(123.5)

= 247m²