Post a New Question

math

posted by .

A stack of 10 quarters is a cylinder. If the diameter of a single quarter is 2.2 cm and the approximate height is 0.17 cm, what is the surface area of a 10-quarter stack?

  • math -

    Total height for 10 quarters
    h= 0.17*10=1.7cm
    Diameter = 2.2 cm, so radius,
    r= 1.1 cm

    Total surface area (including two ends)
    A=2πr²+2πr*h
    =2πr(r+h)

  • math -

    2.794

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

More Related Questions

Post a New Question