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5. A rectangular cabinet has a length of 3 meters, a width of 4 meters, and a height of 5 meters. What is the surface area? a. 48m2 b. 60m2 C. 80m2 d. 94m2​

Sagot :

A rectangular cabinet has a length of 3 meters, a width of 4 meters, and a height of 5 meters. What is the surface area?

[tex]\sf{=2 \times (5 \times 4 \times 5 \times 3 + 4 \times 3)}[/tex]

[tex]\sf{=2 \times (20 + 15 + 12)}[/tex]

[tex]\sf{=2 \times 47}[/tex]

[tex]=\sf\underline{94m^{2} }[/tex]