3 years ago

4. John wants to cover a box entirely with silver paper. How many square centimetres

Mathematics

1 answer:

masya89 [10]3 years ago

8 0

Answer:

l=22cm

b:16cm

h:10cm

surface area =2(lb+bh+lh)=2(22*16+16*10+22*10)

=1464cm²

a=2.5dm

area cubical soda cracker box=6a²=6*2.5²=37.5dm²

r=1.5dm

area of ball=4πr²=4π×1.5²=28.27dm² per ball

for 10 bal =28.27×10=282.6dm²

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