Home » A cylindrical pipe 50m long with radius 7m has one end open. What is the…

A cylindrical pipe 50m long with radius 7m has one end open. What is the…

A cylindrical pipe 50m long with radius 7m has one end open. What is the total surface area of the pipe?

  • A.
    749(pi)m2
  • B.
    700(pi)m2
  • C.
    350(pi)m2
  • D.
    98(pi)m2
Correct Answer: Option A
Explanation

Total surface area of the cylindrical pipe = area of circular base + curved surface area
= (pi)r(^2) + 2(pi)rh

= (pi) x 7(^2) + 2(pi) x 7 x 50

= 49(pi) + 700(pi)

= 749(pi)m(^2)

Related:  The figure FGHK is a rhombus. What is the value of angle X?