- 2146 cm
^{3} - 2121 cm
^{3} - 2156 cm
^{3} - 2149 cm
^{3}

Option 3 : 2156 cm^{3}

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**Given: **

Length of rectangular pipe = 56 cm

Breadth of rectangular pipe = 23 cm

**Formula Used:**

The volume of cylinder = πr^{2}h

Circumference of circle = 2πr

**Calculation:**

Rectangular paper is folded along the length and overlapped by 1 cm, So

Circumference of the base of cylinder = 23 - 1 = 22 cm

Height of the cylinder = 56 cm

Circumference of circle = 2πr = 22

⇒ r = 7/2 cm

The volume of cylinder = πr2h

⇒ The volume of cylinder = π(7/2)2(56)

⇒ The volume of cylinder = 2156 cm3

∴ The volume of the cylinder is 2156 cm3

The correct option is 3 i.e. 2156 cm3

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