Question

find the area of the thin sheet required for making an open cistern it is 5m long ,3m wide ,4m deep.




please solve

Answer 1

area of thin sheet
$area \: of \: thin \: sheet = 2 \times h(l + b) \\ = 2 \times 5(3 + 4) = 70cm ^{2} area \: of \: floor \: of \: cistern = l \times b \\ = 3 \times 4 = 12 \\ total \: area \: of \: thin \: sheet = 70 + 12 = 82 \\ hence \: the \: area \: of \: thin \: sheet \: required \: for \: making \: an \: open \: cistern \: is \: 82 \: please \: sory \: for \: any \: mistake$