Surface and volume

Find the surface and volume of a cuboid whose dimensions are 1 m, 50 cm, and 6 dm.

Correct result:

V =  0.3 m3
S =  2.8 m2

Solution:

a=1 m b=50 cm→ m=50/100  m=0.5 m c=6 dm→ m=6/10  m=0.6 m  V=a⋅ b⋅ c=1⋅ 0.5⋅ 0.6=310=310 m3=0.3 m3
S=2⋅ (a⋅ b+b⋅ c+c⋅ a)=2⋅ (1⋅ 0.5+0.5⋅ 0.6+0.6⋅ 1)=145=145 m2=2.8 m2

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