Question : The curved surface area of a solid hemisphere is 22 cm². What is the total surface area of the hemisphere? (use $\pi=\frac{22}{7}$)

Option 1: 66 cm²

Option 2: 44 cm²

Option 3: 33 cm²

Option 4: 30 cm²

Question : The volume of a cylinder is 4312 cm³. Its curved surface area is one-third of its total surface area. Its curved surface area (in cm²) is:
(Take $\pi=\frac{22}{7}$ )

Option 1: 572 cm²

Option 2: 528 cm²

Option 3: 660 cm²

Option 4: 616 cm²

Question : The volume of a solid hemisphere is 19404 cm³. Its total surface area is:

Option 1: 4158 cm²

Option 2: 2858 cm²

Option 3: 1738 cm²

Option 4: 2038 cm²

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 : If the surface area of a sphere is $1386 \mathrm{~cm}^2$, then its volume is:
(Take $\pi=\frac{22}{7}$ )

Option 1: 8451 cm³

Option 2: 4851 cm³

Option 3: 5418 cm³

Option 4: 4581 cm³