A cylindercal cookie tin of thickness 0.5cm is 14 cm long and its outer diameter is 6 cm .find the volume of metal used in making the tin if the tin has a butter paper lined on the inside along the sides and the base what will be the area of the sheet required
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Answered by
0
Answer:
r=10cm,h=25cm
Total surface area=2πr(r+h)=2π(10)(10+25)=700π=2200cm
2
=0.22m
2
Area of circle=π10
2
cm
2
=0.0314m
2
Area of tin=0.1885
Cost of painting of tin Rs.300perm
2
=0.1885×300=Rs.56.57
Answered by
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Answer:
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Step-by-step explanation:
r=10cm,h=25cm
Total surface area=2πr(r+h)=2π(10)(10+25)=700π=2200cm
2
=0.22m
2
Area of circle=π10
2
cm
2
=0.0314m
2
Area of tin=0.1885
Cost of painting of tin Rs.300perm
2
=0.1885×300=Rs.56.57
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