Dimensions 79074

Calculate the surface area of ​​a cuboid with dimensions 54.5cm, 12.7cm, and 32.3cm.
Express the result in square dm.

Correct answer:

S =  57.2542 dm2

Step-by-step explanation:

a=54.5 cm dm=54.5:10  dm=5.45 dm b=12.7 cm dm=12.7:10  dm=1.27 dm c=32.3 cm dm=32.3:10  dm=3.23 dm  S=2 (a b+b c+c a)=2 (5.45 1.27+1.27 3.23+3.23 5.45)=57.2542 dm2



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