What is the surface area of a piece of pipe that is open at both ends, has a radius of 6 inches, and a height of 18 inches? (Use 3.14 for π.)

Question

Mathematics

Jett

12 April, 02:34

What is the surface area of a piece of pipe that is open at both ends, has a radius of 6 inches, and a height of 18 inches? (Use 3.14 for π.)

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Answers (2)

Know the Answer?

Sanaa Harper · Answer 1

it's 2x3.14 times 6 times 18

2π (6) (18)

Randy Benitez · Answer 2

Aka lateral area

you can imagine it like this:

imagine you take a sheet of paper and roll it into a tube

the lateral aera=circumference times height because if yo open the paper, the area is legnth times width, and when you roll it up, width turns into circumference

so

LA=h (circumference0

LA=h2pir

LA=18*2*pi*6

LA=216pi

pi=3.14 for this question

LA=678.24

SA=678.24 in²