Question

The dimensions of the cuboid in cm are 16 × 14 × 20. Find its total surface area

Answer 1

Answer:1648

Step-by-step explanation:

2(lb+ bh+ hl)

Answer 2

$\huge\sf\underline\purple{Given :- }$

$\sf{length=16cm} \\ \sf{breadth = 14cm} \\ \sf{height = 20cm}$

$\huge\sf\underline\purple{To \: find :- }$

$\sf{ Total \: Surface \: area \: of \: cuboid = \: \: \: ?}$

$\huge\sf\underline\purple{Formula \: required :- }$

$\sf{Total \: Surface \: area \: of \: cuboid = 2 (lb + bh + hl)}$

$\huge\sf\underline\purple{Solution :- }$

$\sf{Total \: Surface \: area \: of \: cuboid = 2 (lb + bh + hl)} \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = \sf{}2(16 \times 14 + 14 \times 20 + 20 \times 16) \\ \sf{ = 2(224 + 280 + 320)} \\ \sf{= 2 \: (824)} \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \:\\ \sf{ = 1648 \: {cm}^{2}} \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \:$

$\sf{The \: total \: surface \: area \: of \: the \: cuboid \: is \: 1648 \: {cm}^{2}}$