Question

A room is 18m long, 14m wide and 8m gh.find the total surface area of the six faces of the room?

Answer 1

sa=2(lb+lh+bh)
sa=2*(18*14+18*8+14*8)
sa=2*(252+144+112)
sa=2*(508)
sa=1016

Answer 2

Long=18m,wide=14m,high=8m

Total surface area =2(lb+bh+hl)

=2(18×14+14×8+8×18)m sq

=2(252+112+144)m sq

=2×508m sq

=1016m sq (ans)