Step-by-step explanation:
☄ [tex] \underline{ \underline{ \sf{Given}}}: [/tex]
- Length ( l ) = 4 cm
- Width ( w ) = 2 cm
- Height ( h ) = 5 cm
☄ [tex] \underline{ \underline{ \sf{To \: find}}} : [/tex]
- Total surface area of a cuboid
❅[tex] \underline{ \underline{ \text{Solution}}}:[/tex]
✑ [tex] \boxed{ \text{TSA = 2lw + 2lh + 2hw}}[/tex]
Plug the known values :
⟼ [tex] \sf{2 \times 4 \times 2 + 2 \times 4 \times 5 + 2 \times 5 \times 2}[/tex]
⟼ [tex] \sf{16 + 40 + 20}[/tex]
⟼ [tex] \boxed{\sf{76 \: {cm}}^{2} }[/tex]
[tex] \red{ \boxed{ \boxed{ \tt{⟿ \: Our \: final \: answer : 76 \: {cm}}^{2} }}}[/tex]
Hope I helped !♡
Have a wonderful day / night ! ツ
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