briannagallo5886 briannagallo5886
  • 17-09-2019
  • Mathematics
contestada

A cylindrical trash can is 30 inches high and has a base radius of 7 inches. What is the outside surface area of this trash can, including the top of the lid?

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joseaaronlara
joseaaronlara joseaaronlara
  • 17-09-2019

Answer:

The answer to your question is: A = 1627.35 in²

Step-by-step explanation:

Data

height = 30 in

radius = 7 in

A = ?

Lateral area

  A = 2πrh

  A = 2(3.1416)(7)(30) = 1319.47 in²

Area of the base and lid

 A = 2 x πr²   = 2(3.1416)(7)²

                      = 307.88 in²

At = 1319.47 in² + 307.88 in²  = 1627.35 in²

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