A rectangular sheet of paper which is 88 cm long and 11 cm wide is rolled to form a cylinder of height equal to its width of the paper. What is the volume of the cylinder so formed?
Answer & explanation
Correct answer: option 2
We know that,
Circumference of circles = 2πr
Vomule of cylinder = πr2h
We have,
Length = 88 cm
Width = 11 cm
Height of cylinder = Width of the paper
Height of cylinder = 11 cm
2πr = 88
= 2 × \(\frac{22}{7}\) × r = 88
= r = 88 × \(\frac{7}{22}\) × 2
= r = 14 cm
Volume of cylinder = \(\frac{22}{7}\) × 14 × 14 × 11 = 6776 cm3