D. \(\dfrac{14}{8}\)

1m²= 100 cm²

C.100 cm²

\(\pi\)( pi ) = 3,1412 .....................

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sorry but I don't no !

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number smaller than 50 are greater than 40 and divisible by 3 and 5 are 45 

click for me ! 

I think A = 106 

Hieu : 34 rim 

Hung : 32 rim 

mk tk bn rồi đó ! tk mk nha 

Is 22 cm