Answer:
1) 63cm²
2)28.27cm²
(dont put the cm² in your answer though since its already there)
Step-by-step explanation:
Surface area of the cardboard part formula :
Base × Height
you have the radius going half way so add another 3cm to make it 6cm so you have the full length
6 x 10.5= 63cm²
Plastic part of the can :
[tex]\pi \: r^{2} [/tex]
3cm is your radius so.
[tex]\pi \times 3 ^{2} = 28.27433388[/tex]
but its asking you to round to the nearest hundredth so
28.27cm²
