Thursday
March 23, 2017

Post a New Question

Posted by on Sunday, May 23, 2010 at 11:04pm.

An aluminum cylindrical juice can has a height of 4 in. and a radius of 6 in. How many square inches of aluminum are needed to make the can?

  • Math - , Monday, May 24, 2010 at 12:36am

    For a can with both ends closed, Area reqd. = 2¡Çrh + 2¡Çr^2 where r=6,h=4 and assume ¡Ç=22/7, A=2640/7 sq in.
    If one end of the can is open then A=2¡Çrh + ¡Çr^2 = 264 sq in.

  • Math - , Monday, May 24, 2010 at 10:42am

    Area of circle = πr^2
    Multiply by 2 to get top and bottom.
    Circumference = 2πr
    Area of side = 4 *2πr
    Combine the data.

  • Math - , Tuesday, July 12, 2011 at 2:30pm

    376.8 in.2

Answer This Question

First Name:
School Subject:
Answer:

Related Questions

More Related Questions

Post a New Question