Question : The radius and height of a cylinder are in the ratio 4: 7 and its volume is 2816 cm³. Find its radius. (Take $\pi=\frac{22}{7}$ )

Option 1: 5 cm

Option 2: 7 cm

Option 3: 8 cm

Option 4: 6 cm

Question : The sum of the curved surface area and the total surface area of a solid cylinder is 2068 cm². If the radius of its base is 7 cm, then what is the volume of this cylinder? (use $\pi=\frac{22}{7}$)

Option 1: 2060 cm³

Option 2: 2480 cm³

Option 3: 3080 cm³

Option 4: 2760 cm³

Question : The volume of a solid cylinder is 2002 cm³ and its height is 13 cm. What is the area (in cm²) of its base?
(Take $\pi=\frac{22}{7}$)

Option 1: 77

Option 2: 154

Option 3: 231

Option 4: 308

Question : The height of a cylinder is 45 cm. If the circumference of its base is 132 cm, then what is the curved surface of this cylinder? (use $\pi=\frac{22}{7}$)

Option 1: 6360 cm²

Option 2: 6270 cm²

Option 3: 5720 cm²

Option 4: 5940 cm²

Question : The radius of a right circular cylinder is four times its height. If the height of the cylinder is 14 cm, then what is the volume of the cylinder?

Option 1: 15468 cm³

Option 2: 14262 cm³

Option 3: 137984 cm³

Option 4: 11296 cm³