• # question_answer A rectangular piece of paper is 71 cm long and 10 cm wide. A cylinder is formed by rolling the paper along its breadth. Find the volume of the cylinder. A)  654                             B)  764            C)  500                             D)  564.78

(d): $2\pi R=10=R=\frac{10}{2\pi }$ $V=\pi {{R}^{2}}h=\pi \times \frac{100}{4{{\pi }^{2}}}\times 71$ $=\frac{100}{4\times \frac{22}{7}}\times 71=\frac{7100\times 7}{88}=564.78$